It is the longest member of the weasel family, Mustelidae, a globally successful group of predators, reaching up to 1.8 m (5 ft 11 in). A wildlife park in the U.K. welcomed a "surprise" litter of otter triplets. [58] The giant otter seems to be opportunistic, taking whatever species are most locally abundant. Yes, really. Researchers emphasize that even between groups, conflict avoidance is generally adopted. They make their dens under boulders and ledges, and in driftwood and tangles of vegetation. Text is available under the Creative Commons Attribution-ShareAlike License 3.0; additional terms may apply. SOUTH YORKSHIRE, England - A wildlife park in England is celebrating the surprise arrival of rare giant otter triplets. The giant otter, a native of South America, is listed as an endangered species by the International Union for Conservation of Nature (IUCN). Two subspecies are currently recognized by the canonical Mammal Species of the World, P. b. brasiliensis and P. b. paraguensis. California otters often prefer kelp beds, probably because of the protection and food resources they provide. All rights reserved. Giant Otter habitat, underwater viewing gallery & waterfall | City Zoo | Planet Zoo | Speed build | Aquatic Pack | Speedbuild | Enclosure | Exhibit | Speedbuild | King Penguin | Grey Seal |. The Giant otter, living in South America, and the largest of the otters in its total length, is the cousin of the sea and river otters in North America, Europe, and Africa. [75][82], In 2006, most of this species lived in the Brazilian Amazon and its bordering areas. April 12, 2023 / 11:04 AM / CBS News. 302 lessons. The groups are centered on a dominant breeding pair and are extremely cohesive and cooperative. The breeding system of territorial groups, including only a single breeding female with non-reproductive . Giant otters are found throughout almost all of South America. Each giant otter needs up to nine pounds of fish per day, so with twenty mouths to feed that's quite a lot of hunting! Who buys lion bones? It has the greatest body length of any species in the mustelid family, although the sea otter may be heavier. The outdoor Montreal zoo is holding its grand opening of the new privately funded, $1.4-million river otter habitat today. Can gum infections trigger arthritis symptoms? 08:00am - 10:30am. The species prefers freshwater rivers and streams, which are usually seasonally flooded, and may also take to freshwater lakes and springs. [35] An analysis published in 2014 cataloged 22 distinct types of vocalization in adults and 11 in neonates. The giant otter inhabits almost exclusively the Amazon-Orinoquia river basin , although it has been extremely persecuted and hunted, to the point that its habitat has been significantly reduced. Slides offer quick access to water or other facilities. Quick hah barks or explosive snorts suggest immediate interest and possible danger. They have brown, water-repellent fur, webbed feet and long, strong tails that help propel them through water. It is regulated internationally under Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) meaning commercial trade in specimens (including parts and derivatives) is prohibited. 5 years and older. SeaWorld And Busch Gardens Conservation Fund. Although generally peaceful, the species is territorial, and aggression has been observed between groups. See how Nat Geo photographed elephants over 100 years, The secret superpowers of elephants, in stop motion. She has a Master's Degree in Cellular and Molecular Physiology from Tufts Medical School and a Master's of Teaching from Simmons College. Because of their size and speed of swimming, Giant otters are successful in competing for fish with Black caimans and jaguars. [14] (Larger figures may reflect two or three family groups temporarily feeding together. French. The giant otter or giant river otter(Pteronura brasiliensis ) is a South American carnivorous mammal. Their nostrils and ears close to keep water out, and waterproof fur keeps them warm. It is the longest member of the weasel family, Mustelidae, a globally successful group of predators, reaching up to 1.7 metres (5.6ft). Explore their stories. Nearly all otter populations have been impacted to some extent by human activities. This species is a native of South America (except for Chile), east of the Andes. Besides burrows, many river otters establish and use a variety of land "facilities" for a number of their daily activities. Territories are generally smaller than home ranges. Can gum infections trigger arthritis symptoms? Trees surround them in the tropical forest, providing shade in the heat of the midday sun. What is a giant otter? Yes, really. [34] Duplaix identified nine distinct sounds, with further subdivisions possible, depending on context. [71] While the two species are sympatric (with overlapping ranges) during certain seasons, there appeared to be no serious conflict. Trevor Platt/Getty They have a gestation period of between 9-10 weeks and usually give birth to 1-3 cubs. [64], Giant otters use areas beside rivers for building dens, campsites, and latrines. Explore their stories. If fish are unavailable, they will also take crabs, snakes, and even small caimans and anacondas. [78] Duplaix relates the story of an Arawak Indian who took two pups from their parents. [27] Its velvety feel makes the animal highly sought after by fur traders and has contributed to its decline. Increasing populations and demand for land and natural resources are destroying the forests and rivers that the giant otters call home. The family members clear an area beside a stream for their living quarters, of up to 50 sq meters, usually near feeding sites. Although some breeding occurs throughout the year, the peak of the breeding season is from late spring to early summer. Congo clawless otters appear to inhabit only small, torrential mountain streams in heavy rainforest areas. Other water habitats include freshwater springs and permanent freshwater lakes. A deadly fungus with mysterious origins is raising alarms, Fast fashion goes to die in this Chilean desert, Behold the surreal magic and mystery of slime molds, See how Muslims celebrate Eid al-Fitr around the world, 'The Odyssey' offers more than just monsters and magic, The forgotten history of cats in the navy. An analysis of dry season range size for three otter groups in Ecuador found areas between 0.45 and 2.79 square kilometres (0.17 and 1.08sqmi). Most otter species have at least one permanent burrow (den) by water. Support the River otters. [40] One fight was directly observed in the Brazilian Pantanal in which three animals violently engaged a single individual near a range boundary. [14] Total population numbers are difficult to estimate. copyright 2003-2023 Study.com. Sign up to keep reading and unlock hundreds of Nat Geo articles for free. This makes it easier for the adults to catch enough fish for the growing young, and for the pups to learn how to catch fish. [37], The giant otter is a highly social animal and lives in extended family groups. The giant otter (Pteronura brasiliensis) is an endangered semi-aquatic carnivore of South America. Clawless otter (genus Aonyx) habitats vary greatly among the species and between individuals. [44][45] Within groups, the animals are extremely peaceful and cooperative. [2] It has no serious natural predators other than humans, although it must compete with other predators, such as the Neotropical otter, jaguar, and various crocodilian species, for food resources. It is one of the most endangered mammal species in the Neotropics. Photo by: Frank Hajek. Schoolchildren, however, had a more positive impression of the animal. The Alaskan sea otter population numbered more than 100,000 in the 1980s. Their underbody is usually lighter in colour. Like human families, these animals mate in monogamous pairs, living with large families in a gregarious lifestyle. [69] Pups are more vulnerable, and may be taken by caiman and other large predators,[52] although adults are constantly mindful of stray young, and will harass and fight off possible predators. They will seek a peaceful place (or "picnic spot") to eat their prey. Incorrect descriptions of the species have led to multiple synonyms (the latter subspecies is often P. b. paranensis in the literature). Breakfast with the otters and the fishers. [55], The longest documented giant otter lifespan in the wild is eight years. The three Guianas remain the last stronghold of giant otters in South America, with pristine giant otter habitat on some rivers and good giant otter densities overallstill, but for how long? Otters are found almost all over the world and in many wet habitats, such freshwater . The otter can attack from both above and below, swiveling at the last instant to clamp the prey in its jaws. Utreras[65] presumed habitat requirements and availability would differ dramatically in the rainy season: estimating range sizes of 1.98 to as much as 19.55square kilometres (0.76 to 7.55sqmiles) for the groups. These can become quite extensive, including "backdoor" exits into forests and swamps, away from the water. There are 13 species in total, ranging from the small-clawed otter to the giant otter. The giant otter is large, gregarious, and diurnal. Explore some characteristics of giant otters and learn fun facts. The range of the Russian or Asian sea otter extends from northern Hokkaido, Japan to the Commander Islands in the western North Pacific. Like most other otter species, giant otters come ashore to give birth. It is found in the main rainforest block of central Africa from Nigeria to Zambia, with a few isolated populations in Kenya and Uganda. Giant otters are endangered and the Yorkshire Wildlife Park now has more giant . "Dry and Rainy Season Estimations of Giant Otter, "Giant River Otter Believed to be Extinct Has Been Spotted in Argentina", "How a social lifestyle helped drive a river otter species to near extinction", "Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20th century international fur trade", "Mercury levels in tissues of Giant otters (, "Giant Otter Project In Peru: Field Trip And Activity Report, 1998", "A Survey of Kaburi Creek, West Suriname, and its Conservation Implications", "WWF welcomes Latin America's largest freshwater protected area", "Estudio preliminar sobre el estado de conservacin de la nutria gigante (Pteronura brasiliensis) en la zona de influencia de Inrida (Bajo ro Inrida) Guaina, Colombia", "PER-I38: El mundo del agua temido y poco conocido", "Biology and conservation of Giant Otter (, "Observations on the ecology and behavior of the giant river otter, https://en.wikipedia.org/w/index.php?title=Giant_otter&oldid=1150316722, Articles with Spanish-language sources (es), Wikipedia indefinitely move-protected pages, Articles containing Portuguese-language text, Articles containing Spanish-language text, Articles containing Ancient Greek (to 1453)-language text, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 17 April 2023, at 12:48. Giant otters are diurnal highly social animals; they live together in family groups numbering 2-20 individuals. In other otter species, vision is generally normal or slightly myopic, both on land and in water. River otters dig their own burrows. Habitat The Giant River Otter lives along reaches of slow-moving rivers or creeks, especially in areas adjacent to wetlands like marshes and swamps [1]. of coastline. Contribute to the cause. How magnesium affects your sleep and anxiety, Your eyes may be a window into early Alzheimer's detection, 6 hiking and biking trails to explore in the Alps this summer. In southern Chile the marine otter is found almost exclusively along exposed rocky seashores; farther north it may inhabit estuaries and fresh water. [18] Carter and Rosas found average areas a third this size. As the largest otter, it can reach up to 2m in length. [60], The species can hunt singly, in pairs, and in groups, relying on sharp eyesight to locate prey. Group sizes are anywhere from two to 20 members, but likely average between four and eight. The groups are centered on a dominant breeding pair and are extremely cohesive and cooperative. A home range is the portion of land and water that an animal frequently visits during its daily and seasonal activities. Like human families, these animals mate in monogamous. I would definitely recommend Study.com to my colleagues. Though most live in freshwater rivers, lakes, and wetlands, the sea otter and the smaller marine. At night, they retreat back to their river bank den, getting some much needed rest after a day of swimming. They give birth within these dens during the dry season. They dwell in flooded forests, slow moving rivers, streams, lakes and swamps. These whiskers are extremely sensitive and can detect small changes in current, allowing them to detect their prey without even seeing them. Enrolling in a course lets you earn progress by passing quizzes and exams. River otters can measure up to 1.4 metres in length from nose to tail, and weigh up to 14 kilograms. Giant otters served as Yaku runa's canoes. Parasites, such as the larvae of flies and a variety of intestinal worms, also afflict the giant otter. It grows from 4.9 to 5.9 feet (1.5 to 1.8 meters) long. [90] The indigenous Kichwa peoples from Amazonian Peru believed in a world of water where Yaku runa reigned as mother of the water and was charged with caring for fish and animals. Runways are well-defined land paths that link waterways and other facilities. Schenck et al., who undertook extensive fieldwork in Peru in the 1990s, suggest specific "no-go" zones where the species is most frequently observed, offset by observation towers and platforms to allow viewing. The giant otter is diurnal, being active exclusively during daylight hours. It is the longest member of the weasel family, Mustelidae, a globally successful group of predators, reaching up to 1.8m (5ft 11in). 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