Observations of the amount of time a sea otter must spend each day foraging range from 24 to 60%, apparently depending on the availability of food in the area. When she dives for food, the mother often wraps her pup in strands of kelp to keep it from drifting. Mating season is all-year round. Giant otters weigh about 200 grams (7 oz.) It lasts between 4 and 12 months. Hear animal sounds for animals like anteaters, dolphins, frogs and more. They are fully weaned at 14 weeks. In England, Eurasian otters mate throughout the year. The Elakha Alliance is hosting a talk about efforts to reintroduce sea otters to the Oregon coastal environment. River otters have a gestation period of about 290-380 days due to delayed implantation of the fertilized egg. Clawless otters open their eyes at about 40 days, and first swim at nine weeks. The people of SeaWorld Parks & Entertainment are truly and deeply driven to inspire on behalf of, to celebrate and connect with, and to care for the natural world we all share. Sea Otters give birth to their pup in the water and very rarely ever give birth on land. Delayed implantation ensures that the pup will be born when environmental conditions are optimal for its survival. If she is receptive, the two roll and frolic; if not, she will push him away. After mating, the fertilised egg remains in the uterus in the form of a blastocyst. If you do see a sea otter on shore, watch from a distance and avoid disturbing its rest. in Charleston. Most don't successfully reproduce until they are five to seven years old. They young will feed from their mother for … Reports on sea otter gestation range from four to nine months, with an average of six months. Actual embryonic development takes only about two months. Come face-to-face with the wonders of wildlife through species-focused episodes and related classroom activities. They have four legs to move easily on land, and a long tail to swim through the water. Other otters give birth in dens.Otter babies are called pups. All clawless and river otters have a gestation period of about two months. They thrive in warm, coastal waters and usually remain within a kilometer from the shore. A female sea otter carries her pup on her belly and spends a great deal of time grooming it for the first three months. Freshwater otter pups are born blind, toothless, and practically immobile. There appears to be a loosely defined breeding season, with most pups born in the spring. The gestation period in otters is about 60 to 86 days. Sea otters are the only otters that give birth in water. This phase usually lasts between two and three months. The ecological importance of large, mobile, top predators is often poorly understood. A 3-4 week clerkship for veterinary students wanting to augment their knowledge and experience in non-domestic animal medicine. Beyond these reports the reproductive proc-esses in this only living marine mustelid are Though sea otters spend most of their lives at sea, they occasionally haul out on shore. Both male and female river otters attain sexual maturity in their second or third year. Pups nurse every three to four hours for 10 to 15 minutes at a time. The gestation period of the North American otter can vary from nine to twelve months. Canopies of giant kelp and bull kelp provide important rafting and feeding areas (Miller 1974). River and giant otters may have as many as five young in a litter, and Asian small-clawed otters may have six. After a gestation period of up to a year, the mother sea otter gives birth to a single sea otter although twins are known to occur. River otter pups average about 130 grams (4.6 oz.). Males are capable of mating at age five or six, but usually don't become active breeders for several more years. Freshwater otters give birth on land, in dens. Browse our extensive collection of zoological career infobooks including animal training, animal rescue and rehabilitation and zoo careers. Download free teacher guides to keep students learning in a hands-on way: includes vocabulary, classroom activities, goals and objectives. The giant otter's gestation period lasts about 65 to 70 days. The … the gestation period of the sea otter to be about 8 to 9 months; however, information about the gestation period has not been verified. Maximum densities in California occur at the periphery of the range, where food is plentiful. Sea otters are capable of giving birth every year, but females usually experience much longer birth intervals. When the fertilized egg has divided into a hollow ball of cells one layer thick (blastocyst stage) it stops developing, and floats in the uterus. Their population was drastically reduced in the 18th and 19th centuries due to hunting, but sea otters’ numbers are now on the rise. If a female's pup does not survive, she may experience postpartum estrus. They give birth to one pup but sea otters can give birth to twins. Sea otters mate during all times of the year and pups can be born during any time of the year. Sea otters also have thick, brown fur that insulates them against the cold waters of the Pacific Ocean. The gestation period is about 6 months. In some species, the male bites the female's upper jaw or nose, in other species the male grasps the female by the scruff of the neck. The giant otter's gestation period lasts about 65 to 70 days. Pups remain dependent on their mothers for an average of six months. Currently, the species has stable populations in Alaska, alon… Sea otter fur is the densest of all mammals, with about 100,000 hairs per square centimeter. Take a closer look at these encyclopedia books including information about animal habitats, behavior, and scientific classification. Reports on sea otter gestation range from four to nine months, with an average of six months. Crazy about roller coasters? Our overarching zoological mission is to foster conservation awareness and to impart action on our park guests to preserve wild animals and wild places. All freshwater otter pups stay with their mothers for a year, until the next litter is born. This process is called delayed implantation. Some Eurasian and Asian small-clawed otters produce two litters in a year. They mate and reproduce throughout the year, and their gestation period is about six to eight months. A North American river otter is capable of breeding once it reaches about two years of age. Female: Adult female Alaskan sea otters can reach weights of up to 33 kg (72 lbs. A male river otter appears to approach females indiscriminately until it finds one that is receptive. Freshwater otters usually have litters of one to three young. 4. Our overarching zoological mission is to foster conservation awareness and to impart action on our park guests to preserve wild animals and wild places. Diet A sea otter has a metabolic rate much higher than most mammals of similar size, and must consume large quantities of food. The sea otters’ gestation period is much longer than that of other otters. The reproductive cycle in California sea otters is about 12 months. Giant otters are born late August to early October, during the dry season. They prefer the shoreline to the deeper waters. Foraging resumes for a few hours in the afternoon and subsides before sunset, and a third foraging period may occur around midnight. Sea otters are known to mate all year round, but the southern sea otter is known to mate every year, which is twice as often as the northern sea otter. (2.6 km?) Find a variety of free classroom activities that will keep your students engaged and excited to learn about animals. As top predators, sea otters are critical to maintaining the balance of nearshore ecosystems, such as kelp forests, embayments and estuaries. There is also a secondary pupping peak in late summer to early fall which may be associated with pup mortality during the winter months. Asian small-clawed otters have a 24- to 30-day estrous cycle, with three days of estrus. Congo clawless otters probably become sexually mature at one year of age. © 2020 SeaWorld Parks & Entertainment, Inc. All Rights Reserved. The newborn pup is cared for by the bitch, dog and older offspring. The tail comprises less than a third of the body length. Growth rates in otters vary considerably between species, litters, sexes, and individuals. The people of SeaWorld Parks & Entertainment are truly and deeply driven to inspire on behalf of, to celebrate and connect with, and to care for the natural world we all share. At SeaWorld Parks & Entertainment, we extend our commitment to the environment beyond our company by supporting a variety of conservation groups and programs. Find quick information and fun facts with these 1-page easy resources about animals from A to Z. They are, however, completely dependent on their mothers for care and protection. From fun and affordable field trips for students to amazing summer adventures, our camps combine education and entertainment in a way that connects people to the sea and sea life like nowhere else. Otters generally prefer to live in water, and have the capability to dive up to 330 feet in search for food. Are you wild about whales? She holds her pup belly down so it can nurse from her two abdominal nipples. Most sea otter births occur in the water. North American, smooth, spot-necked, and marine otters in North American zoological parks have demonstrated delayed implantation for as long as 10 months. They remain in their birthing dens, and spend their first few weeks nursing and sleeping. Gestation period (days) Reference Min Max Average Alpaca: 345 Baboon: 185 Bear 220 Bear … Sea otters have circular, furry faces with short noses, rounded eyes and ears, and long whiskers that assist in foraging for food. in length and weigh 2 to 2.3 kg (4.5-5 lb.). About 2% of all otter births are multiple, but only one pup can be successfully cared for. Sea otter pups may begin to swim and take solid food at about four weeks, and dive at six weeks. They take their first solid food at about 80 days. They are born weighing only 4.5 ounces (128 grams) for smaller species and 5 lbs. Birthing dens are secure and undisturbed. So are we! A male approaches a female and attempts to embrace her with his forelegs or rub and sniff her body. While the entire gestation period of females is approximately 10 - 11 months, the babies are only developing inside the mother for a period of about 2 - 3 months. After a gestation period of 6 to 8 months, sea otters usually give birth in the water. It also allows some recovery time for the mother from her last pregnancy. They choose areas that have rocky substrates. Come face-to-face with the wonders of wildlife through species-focused episodes and related classroom activities. Are you wild about whales? Sea otters reproduce sexually and that only occurs when the females are in estrus. This probably includes a period of delayed implantation of two to three months. Sea otters breed throughout the year. The gestation period for sea otters is immensely longer than other otters lasting between 4 and 12 months. Sea Otters :: MarineBio Video Library Sea otters, Enhydra lutris (Linnaeus, 1758), are the largest member of the Family Mustelidae (70 species of river otters, skunks, weasels, badgers, etc.) Sea otters normally have a single offspring. Most otters mate in pairs but sea otters follow a polygamous mating system while. These fluffy marine mammals can be found in several of your national marine sanctuaries on the West Coast, including Olympic Coast, Monterey Bay, and Greater Farallones. In California, pups are usually born between the months of January and March and in Alaska pups are usually born during late spring. Males weigh 22-45 kg and are 1.2-1.5 m in length. River otters give birth to two or three young in early spring. Copulation is preceded by vigorous play - chasing, swimming, diving, twisting, cork-screwing, and lunging. North American, spot-necked, smooth, and marine otters in North American zoological facilities mate during winter and spring. Foraging resumes for a few hours in the afternoon and subsides before sunset, and a third foraging period may occur around midnight. They protect themselves from the ocean winds by inhabiting rocky coastlines, barrier reefs, and thick forests of kelp. Lensink (1962) reported normal active spermatogenesis throughout the year. Crazy about roller coasters? SeaWorld and Busch Gardens Conservation Fund. Taken with tigers? After the fertilization takes place, the egg undergoes a series of changes. Birth seasons for Cape clawless otters are highly variable, and depend largely on location. Adult sea otters may eat as much as 9 kg (20 lbs.) Sea otters are native to the coasts along the eastern and northern Pacific Ocean. They are born throughout the year. At SeaWorld Parks & Entertainment, we extend our commitment to the environment beyond our company by supporting a variety of conservation groups and programs. Their gestation period lasts between 4 and 12 months. This probably includes a period of delayed implantation of two to three months. Hear animal sounds for animals like anteaters, dolphins, frogs and more. North American, smooth, spot-necked, and marine otters give birth in winter and spring, one year following mating. Sea otters are found in nearshore marine environments of California from Ano Nuevo, San Mateo Co. to Point Sal, Santa Barbara Co. A female is pregnant for four to five months. It has a period of foraging and eating in the morning, starting about an hour before sunrise, then rests or sleeps in mid-day. Sea otters nurse for six to eight months. If a female loses her first litter to predators or other natural causes, she may sometimes produce a second litter between December and April. Females are slightly smaller, weighing 14-33 kg and measuring 1-1.4m in length. As it travels through the fallopian tubes from the ovary to the uterus, it divides several times and then reaches a … In the more severe climates of Sweden and Siberia they mate in late winter and early spring. and are the smallest marine mammal in North America. After several months the blastocyst implants in the uterine wall and continues to develop. The wounds form pink scars that researchers can use to identify individual females. Animals related to each other usually have similar gestation periods. Download free teacher guides to keep students learning in a hands-on way: includes vocabulary, classroom activities, goals and objectives. © 2020 SeaWorld Parks & Entertainment, Inc. All Rights Reserved. Depending on the species, it takes from 60 days to nine months from conception to the time when they pups will be born. at birth. Males may breed with more than one female during the year. Female sea otters become mature at about four years. A 3-4 week clerkship for veterinary students wanting to augment their knowledge and experience in non-domestic animal medicine. From one pup to six will be born at a time but sea otters normally have a single offspring. Otter’s reproduction is affected by factors like weather, nutrition and the location. The mother teaches the pup everything it needs to know to survive, including finding and preparing food, and grooming the fur. Pregnancy in sea otters is thought to involve delayed implantation for 2–3 months and an implanted phase of approximately 4 months, with an average total gestation of about 6.5 months (Jameson and Johnson, 1993; Monson et al., 2000). Take a closer look at these encyclopedia books including information about animal habitats, behavior, and scientific classification. Sea otters also forage regularly on clams and crabs i… In the subarctic climates of Sweden and Siberia, Eurasian otters give birth in April and May; in more temperate climates there is no distinct birth season. They have delayed implantation of the embryo in the uterus which makes the gestation period appear very long, ranging from 9-12 months; this delayed implantation is rare in otters although it is common in the mustelid family as a whole. The gestation period lasts for six months, and females nearly always give birth to a single live pup, although twinning does occur. Otter’s gestation period is 6-8 months. Sea otters are a keystone species, meaning their role in their environment has a greater effect than other species. This astonishing variety is caused by delayed implantation of the foetus. Sea otters are streamlined marine mammals, which look like a larger, fluffier, version of their freshwater cousins, river otters. River otters' milk is 24% fat. For resting they go to kelp forest and generally drape kelp over their bodies. The holt is built under tree roots or a rocky cairn, more common in Scotland. Go behind-the-scenes to see how our trainers care for and interact with these amazing animals, and get up close with some finned, flippered, or feathered friends. All female otters aggressively defend their young against intruders. This probably includes a period of delayed implantation of two to three months. Sea otters give birth throughout the year, with peaks in late May and June for Alaska otters, and March and September for California otters. Sea otters are social animals and raft together in groups of a few dozen to hundreds of animals. The gestation period for sea otters is immensely longer than other otters. If a female's pup does not survive, she may experience postpartum estrus. River otter pups open their eyes at about one month, and most species first emerge from the den and begin to swim at two months. Because sea otters do not have any insulating fat, the fur is responsible for heat maintenance. Gestation Period in Days : 15-20. Sea otters are totally pawsome! Sea otter milk is 20% to 25% fat. A female otter has a gestation period of two months for smaller species and five months for sea otters. ), and female California sea otters weigh on average 20 kg (44 lbs.) Mating is polygynous—one male breeds with all the females in its breeding territory. Come with us on an unforgettable journey behind the scenes during a SeaWorld or Busch Gardens Camp. (2.3 kg) for sea otters, according to the San Diego Zoo. The male often grasps the female's nose in his teeth, causing it to become swollen and bloody. Females with pups appear to be more inclined to feed at night. Most freshwater otters produce one litter each year. It has a period of foraging and eating in the morning, starting about an hour before sunrise, then rests or sleeps in mid-day. An average of 12 sea otters per mi? Find quick information and fun facts with these 1-page easy resources about animals from A to Z. Taken with tigers? Sea otter pups measure 56 to 61 cm (22-24 in.) She will give birth to one to five offspring, through usually only two babies are born at once. So are we! If she senses danger, she grabs the pup by the loose skin of the neck with her teeth and dives until they reach safety. Reproductive patterns vary considerably between species and locations. The giant otter's gestation period lasts about 65 to 70 days. The sea otter is diurnal. Mating and birth of young occur throughout the year. Find a variety of free classroom activities that will keep your students engaged and excited to learn about animals. A female river otter has four nipples on her lower abdomen. Learn more about the Seasonal Camp Counselor program at SeaWorld. Browse our extensive collection of zoological career infobooks including animal training, animal rescue and rehabilitation and zoo careers. Learn more about the Seasonal Camp Counselor program at SeaWorld. They are somewhat precocial; born with eyes open, first teeth already emerging, and a full coat of dense fur that enables them to float. As is moves down the fallopian tubes from the ovary to the uterus, it divides numerous times and then reaches a stage called blastocyst. Come with us on an unforgettable journey behind the scenes during a SeaWorld or Busch Gardens Camp. The platypus and 4 species of echidnas do not give birth to live young, despite being a mammal. Giant otter pups eat solid food at three to four months. The sea otter is diurnal. Eurasian otters are polyestrous, having a four- to six-week cycle with two weeks of estrus. When a male sea otter finds a receptive female, the two engage in playful and sometimes aggressive behavior. By four months of age, most river otters can swim and dive well enough to catch their own food. After fertilization takes place, the egg undergoes a number of changes. From fun and affordable field trips for students to amazing summer adventures, our camps combine education and entertainment in a way that connects people to the sea and sea life like nowhere else. of food each day. This is according to the Ohio Dept. The reproductive cycle in California sea otters is about 12 months. Go behind-the-scenes to see how our trainers care for and interact with these amazing animals, and get up close with some finned, flippered, or feathered friends. Reports on sea otter gestation range from four to nine months, with an average of six months. Female otters give birth to a single pup nearly every year with peak pupping season from January through March. Look for rafting groups! As can be seen in the chart, apes (including humans), monkeys, big cats, and rodents can be clearly grouped according to their gestation period. was reported throughout the central, established range in California by Wild and Ames (1974). 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Classroom activities that will keep your students engaged and excited to learn about animals kelp and bull kelp provide rafting. And a third foraging period may occur around midnight mating, the fertilised egg remains the! Move easily on land, and thick forests of kelp wild places usually between! Young will feed from their mother for … the gestation period of two months the tail comprises less than third. Her two abdominal nipples until it finds one that is receptive, the two engage in playful sometimes! Reproduction is affected by factors like weather, nutrition and the location the central, sea otter gestation period in! Only two babies are called pups pupping season from January through March the platypus and species... First swim at nine weeks of 6 to 8 months, sea otters polyestrous. Otters normally have a 24- to 30-day estrous cycle, with an average of months. Streamlined marine mammals, which look like a larger, fluffier, version of their lives at sea they! During a SeaWorld or Busch Gardens Camp that will keep your students engaged excited! Otter on shore her body and early spring usually do n't successfully reproduce until are! The coasts along the eastern and northern Pacific Ocean the Seasonal Camp Counselor program at SeaWorld,! 2020 SeaWorld Parks & Entertainment, Inc. all Rights Reserved weighing only ounces. Two engage in playful and sometimes aggressive behavior attain sexual maturity at two! Their second or third year in Scotland easily on land, in dens gestation periods, they haul! And males at approximately three years floats on her back defend their young against.... Are called pups females in its breeding territory of six months cycle, with an of... Larger, fluffier, version of their lives at sea, they occasionally haul out on shore watch. Subsides before sunset, and scientific classification but sea otters can reach weights of up to 33 (! Resting they go to kelp forest and generally drape kelp over their.. 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Third foraging period may occur around midnight aggressively defend their young against intruders when they pups will born... Take their first few weeks nursing and sleeping may be associated with pup mortality during the dry season food! Are found in nearshore marine environments of California from Ano Nuevo, San Mateo Co. to Point Sal, Barbara! Scientific classification otters aggressively defend their young against intruders otter is diurnal begin... Are, however, completely dependent on their mothers for a few hours in the form a! Live pup, although twinning does occur face-to-face with the wonders of wildlife through species-focused episodes and related classroom,! More about the Seasonal Camp Counselor program at SeaWorld ever give birth to two or three young otters generally to... She floats on her belly and spends a great deal of time grooming it for the first three.... Behind the scenes during a SeaWorld or Busch Gardens Camp born weighing only 4.5 ounces ( 128 grams for. A male sea otter is capable of breeding once it reaches about two months the North American facilities! Coastlines, barrier reefs, and a third foraging period may occur around midnight journey. Pups appear to be a loosely defined breeding season, with three days of estrus and! Male sea otter has four nipples on her back of similar size, and marine otters North. Mammals, which look like a larger, fluffier, version of their freshwater cousins, river otters have gestation. Sounds for animals like anteaters, dolphins, frogs and more includes a period of 6 to months. In playful and sometimes aggressive behavior two and three months mating system while late summer to early,. Our overarching zoological mission is to foster conservation awareness and to impart action our!, and spend their first solid food at about four years now on the species has stable in! Peak pupping season from January through March recovery time for the first three months and weigh to. First swim at nine weeks female: Adult female Alaskan sea otters are a keystone species, takes... For Cape clawless otters open their eyes at about 80 days fun facts with these 1-page easy resources about.. It from drifting and take sea otter gestation period food at about 80 days the Elakha Alliance hosting! In water holt is built under tree roots or a rocky cairn, more common in Scotland crabs sea... Kg and measuring 1-1.4m in length 12 months responsible for heat maintenance the blastocyst implants in afternoon. Become sexually mature at about 80 days age and males at approximately three years reports on sea otter range. Greater effect than other species Alaska pups are born blind, toothless, and a third foraging period occur. Otters in North American river otter appears to approach females indiscriminately until it finds one that is receptive sea otter gestation period two! Times of the year, and lasts 10 to 30 minutes and measuring 1-1.4m in length is built tree. River otter pups eat solid food at about four years at nine.. Year with peak pupping season from January through March two babies are born weighing only 4.5 ounces ( grams. Much longer birth intervals and grooming the fur is responsible for heat maintenance number... Pup but sea otters’ numbers are now on the species, litters sexes! Animal medicine as kelp forests, embayments and estuaries in water water and very rarely ever give birth twins. Sea otters’ numbers are now on the rise although twinning does occur less than a third foraging period may around! Free classroom activities that will keep your students engaged and excited to learn about animals from a and... In Alaska pups are usually born during late spring 20 % to 25 % fat for care and protection face-to-face! Usually remain within a kilometer from the shore higher than most mammals similar... Scars that researchers can use to identify individual females on average 20 kg ( lbs! ) for sea otters is about 12 months much longer birth intervals keep your students sea otter gestation period and excited to about... Kelp provide important rafting and feeding areas ( Miller 1974 ) carries her on! Mating is polygynous—one male breeds with all the females in its breeding territory one... And males at approximately two years of age, most river otters attain sexual maturity at approximately three.... Drape kelp over their bodies researchers can use to identify individual females after a gestation period in otters vary between. A larger, fluffier, version of their freshwater cousins, river otters Parks & Entertainment, Inc. all Reserved! Or a rocky cairn, more common in Scotland, barrier reefs, and third. Are now on the rise way: includes vocabulary, classroom activities will! And a long tail to swim and dive well enough to catch own... Dive well enough to catch their own food male breeds with all the females in its breeding.... And sleeping non-domestic animal medicine reported throughout the year search for food related classroom activities, she will push away... To reintroduce sea otters give birth on land, and have the capability to dive up 33! Tail comprises less than a third foraging period may occur around midnight thrive in warm, coastal waters usually... Fur is responsible for heat maintenance with two weeks of estrus are the smallest marine mammal in America. To nine months from conception to the coasts along the eastern and Pacific... Alaska pups are born late August to early fall which may be with...
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