They arent cuddely, otters. River otters and giant otters hunt by using their vibrissae to detect movements of prey in the water. The river otter food chain includes many types of fish, mollusks, crustaceans, aquatic plants and roots, eggs, and some small mammals and birds. A mink would kill and eat a cat, probably a dog. Otters are just a little bigger than a mink, they won't eat dogs unless i suppose, the dog is dead and rotting. The marine otter is really a freshwater otter that has learned to occupy marine environments in South America. Otters eat from 15% to 25% of their body weight each day. This species is also considered to be the largest member of the Mustelid family, and this is because these mammals can grow to a length of 6 feet. What Do Giant River Otters Eat? Swans do establish a “Pecking Order.” The Dominate Cygnets will prevent the Submissive Cygnets from eating if there is Insufficient Food Available. Otters are accustomed to preying on live animals; hunting is an integral part of an otter’s life. Sea otters eat about 25% to 30% of their weight. This small (3–6 kg [6.6–13.2 pounds]) otter occurs on the Pacific coast from Peru through Chile and Tierra del Fuego in Argentina. Swans are not greedy Creatures and will only eat what they need. They catch prey with their teeth. By studying how sea otters were foraging in the Elkhorn Slough—what prey species they were eating and where they were feeding—Dr. Amphibious, muscular river otters swim gracefully and quickly underwater to catch prey, and they can run on land. To stay warm in the water for so long, otters have incredibly thick fur, and very fast metabolisms, which means they need to eat a lot – 20% of their body weight per day, during certain months. They hunt singly or in pairs and although otters generally forage in water, they are equally at home on land, sometimes traveling between 10 and 18 miles (16 and 29 kilometers) in search of food. A large male may consume as much as 11 kg (25 lb.) Pet otters eat a lot. Those that have offspring may hunt more because it takes a great deal of milk to feed their young. Sharks and killer whales eat sea otters on occasion. River otters eat mostly aquatic organisms, including fish, frogs, crayfish, turtles, insects and some small mammals. What do Otters Eat? They can spend up to five hours each day finding the food that they need in order to survive. Methods of Collecting Food. The new pair often raises fewer cygnets in their first year, but improve in later years, particularly for the female from the original pair. im afraid you are incorrect. Otter's prey on small mammals -mice, vole's, mole's- and they are starting the prey apon ducks in some area's. Giant otters often hold their prey in their paws while eating it. If anything, the cat owuld eat the otter. In Poland, the divorce rate in mute swans is about 4%. River otters belong to the weasel family. you try to back up the evidence of no barbel scales in the otter spraints as evidence that barbel are not being eaten [in this test evidence] by otters, but you have also agreed that otters will peel back the skin of larger fish species (barbel, carp, chub, etc) and eat the flesh and internal organs. A female Otter can spend up to 8 hours a day nursing. You are providing adequate Food, if there is a small amount left in … As suggested by its name, the giant river otter is the largest otter species, and it is often referred to as the river wolf . Hughes discovered that sea otters were feeding on crabs that in turn were feeding on sea slugs. of food daily. 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