The otter is both prey and predator, as it is predator to some animals and yet is prey to others. The hearing of this species is intense and its sense of smell is excellent. Living in an environment with the highest biodiversity in the world, Giant Otters have no natural predators. Giant River Otter At more than twice the length of the North American river otter, the giant river otter (Pteronura brasiliensis) is quite a sight.A skilled hunter and apex predator, the giant river otter is also very much a family-oriented creature, living in large and often noisy groups along the river banks of the Amazon and its tributaries. Further research shows its powerful jaw could have made it a dominant predator. Humans also kill sea otters when they use fishing gear that traps the otter or hit the otter with boats. The giant river otters have also been noted to feed on small anacondas and caimans. Giant river otter are smart, capable predators in their own right. The giant otter subsists almost exclusively on a diet of fish, particularly characins, piranhas, and catfish, but may also eat crabs, turtles, snakes and small caiman i f fish are unavailable. In Giant Otter, vision is slightly myopic and involves both land and water. Unusually for a mustelid, the giant otter is a social species, with family groups typically supporting three to … Jaguars are said to be their only predator. Conservation status. Living in cohesive family groups called romps, they’ve been known to kill anacondas and caimans. Because of the stunning agility and ability to work effortlessly in groups, the giant river otter tends to have no problem defending itself from such predators. As the name suggests, the giant otter is the world's largest otter species and is well-known from wildlife documentaries. The giant river otters are excellent predators. Filed to: giant otter. giant otter science paleontology animals biology. Yorkshire Wildlife Park is home to Mora and Alexandra, two female Giant Otters from Duisburg Zoo in Germany. Fast, aggressive and intelligent, the giant otter has few natural predators. Atypical of mustelids, the giant otter is a social species, with family groups typically supporting three to eight members. In terms of otters, the giant one has the shortest coat and its … The giant otter (Pteronura brasiliensis) is a carnivore of the mustelid family, native to South America. Even a jaguar would think twice before taking on a romp of giant otters. Giant Otters’ Main Characteristics. Find out more about this beautiful mammal. Across the world, there are thirteen known species of otter. Although they may look cute and cuddly, giant otters are also ferocious predators. In groups the otters are capable of taking on almost anything the river and jungle can throw at them, including larger caiman. The giant otter is the longest species among mustelids although not the heaviest. Giant Otter is very active during the day, suggesting that Giant Otter should have better eyesight to help hunt and avoid predators. Giant otters are the largest of any otter in the world growing up to 1.8m. Giant Otters are one of the largest predators within the Amazon river. Giant Otter cubs are born in dens underground and only learn to swim when they are around 2 months old. It is the largest aquatic carnivore of this region and the largest otter in the world, measuring 1.8 m in length and weighing 33 kg. 18. Giant otters are significant predators in rivers of South American. They hunt on shallow water of about 2 feet. Hunting otters was profitable and easy. They take a nap at mid-day during really warm weather. Giant otters are very territorial. Atypical of mustelids, the giant otter is a social species, with family groups typically supporting three to eight members. Even with the speed and agility of this otter, predators are still a very real threat. Otters are voracious predators, close to being apex [top predator] in most places where they live. This makes Giant Otters one of the most successful in the Amazon. On the one hand, adult males are between 5 and 6 feet long and weigh between 70 and 99 pounds and on the other, females measure between 5 and 5 1/2 feet in length and weigh between 48 and 58 pounds. The majority of the otter’s diet is made up of fish although they will occasionally take smaller caiman and even anacondas. They have quicker reflexes than anacondas, are better swimmers than crocodiles, and eat piranhas for breakfast. Predators of the North American River Otter. Giant river otters: One of the Amazon forest's top predators 04 November 2016 (5692 visits). Giant otter. Even to the point where Giant Otters can compete and succeed with other large predators within the Amazon river ecosystem, - such as Jaguars. Endangered [2]. Giant otters are mainly diurnal, social and territorial animals. Giant otters are the largest species of otter, and are called wolves of the river, as well as mustelidae, in Brazil. This species is the largest among all the species of otters in the world, (sea otters , with their more compact body, can weigh considerably more).The males reach a total length of 1.5 to 1.8 m and a weight between 26 and 32 kg.As for females they usually measure 1.5 to 1.7 m in length and can weigh between 22 and 26 kg. Relatives of otters, they actually look much larger than otters, and are therefore known as giant otters. The Giant otter was discovered by Gmelin in 1788. Once they locate their prey, the giant river otters proceed to capture and consume them. Males are from 4.9 to 5.6 ft (1.5 to 1.7 m) and females from 3.3 to 4.9 ft (1 to 1.5 m). Giant otters have no predators except humans, who once hunted them widely for their fur. A single giant otter pelt was worth more than a year’s annual wage for a local resident. Physical Features and Characteristics: Males average between five and six feet long and weigh 55 to 70 pounds, while females are just a few inches and pounds smaller. Otters are eaten by large predators, such as great white sharks, killer whales, bears, sea lions, eagles and coyotes, depending on their geographical location. The major predator that these otters do have trouble protecting themselves from are, of course, poachers. The giant otter is the largest and the second heaviest (the sea otter is the heaviest) of the Mustelidae or weasel family. The giant otter (Pteronura brasiliensis) is a South American carnivorous mammal. The giant otter is known as the river wolf in South America because it is one of the top predators of its aquatic ecosystem. So anywhere they overlap with gators this would be a pretty common occurrence. It is the longest member of the Mustelidae, or weasel family, a globally successful group of predators, reaching up to 1.7m (5.6 ft). The Giant Otter is the longest member of the weasel family. Giant Otter has 2n = … There are much easier meals to get in the Amazon. Giant otters produce 9 different vocalizations and are very loud. Giant Otters typically live in and along the Amazon River. Found in South America, it inhabits slow-moving rivers and creeks and feeds predominantly on fish. 4. They reach adult size at 9 to 10 months old. Giant otters are apex predators and feed mainly on fish such as Characins and catfish. Giant otter with supper. Pteronura brasiliensis (Zimmermann, 1780), the giant otter, is the largest freshwater otter. Not to say that otters aren't occasionally taken as … These mammals have whiskers, which they use to spot their prey by detecting vibrations in the water. This species of otter is so large it will occasionally eat anacondas and caimans. It is the longest member of the Mustelidae, or weasel family, a globally successful group of predators, reaching up to 1.7m (5.6 ft). The giant otter or giant river otter (Pteronura brasiliensis) is a South American carnivorous mammal.It is the longest member of the weasel family Mustelidae, a globally successful group of predators, reaching up to 1.7 metres (5.6 ft). They are opportunistic; feeding on whatever is locally abundant. They are often successful predators. Scientific classification; Kingdom: Animalia: Phylum: If fish is not available, they will prey on crabs and even small anacondas. The Giant Otter The Giant Otter (Pteronura brasiliensis) is a six foot long mammal that lives in the Amazon jungle. Group-living for giant otters likely implies important benefits for territory maintenance, reproductive success, and protection against predators, thereby also … Giant otter: Physical characteristics. Giant River Otters are apex predators, partially due to these impenetrable family groups, and use 22 different vocalisations to communicate to one another. Predators of this otter are few in number but do include jaguars and large caimans. The Giant River Otter is a sociable creature who lives in families of 3-10 members, banding together to protect themselves and their territories. It will even hunt the feared Red-bellied Piranha. Their fur is among the finest in the world, so dense that water never reaches their skin. It is also known as the Guiana flat-tailed otter, margin-tailed otter and winged-tailed otter. Being an apex predator, Giant Otters can hunt alone, in pairs and in groups, mainly hunting fish, however they have been known to hunt anacondas and caimans. It is the longest member of the Mustelidae, or weasel family, a globally successful group of predators. The giant otter (Pteronura brasiliensis) is a South American carnivorous mammal. They will even hunt in packs to take on the Black Caiman, which is the largest carnivore in the Amazon. 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