They exhibit many adaptations associated with hunting in water for food and burrowing along streams rivers and lakes.
Big water rodent.
Monster rodents haunted new york city long before the arrival of the sewer rat.
Nutria also known as coypu or swamp rats are large rodents that live in areas with lots of freshwater.
The coypu lives in burrows alongside stretches of water and feeds on river plant stems.
The eyes are small the nostrils can be closed to keep water out and the external portion of the ears is either.
The coypu from spanish coipú from mapudungun koypu.
The big apple had once been the home of castoroides bear sized beavers who were 213 centimeters 7 ft long and weighed over 90 kilograms 200 lb.
For comparison the largest modern beavers top out at 27 kilograms 60 lb.
Also called capivara in brazil chigüire chigüiro in colombia and venezuela carpincho in argentina paraguay and uruguay and ronsoco in peru it is a member of the genus hydrochoerus of which the only other extant member is the lesser capybara.
The capybara hydrochoerus hydrochaeris is a giant cavy rodent native to south america it is the largest living rodent in the world.
Aquatic adaptations they live in burrows or nests never far from the water.
Water rat any of 18 species of amphibious carnivorous rodents.