What is an amphibious rodent?

There is no such thing as an "amphibious rodent". While some rodents, like beavers, live near water and can swim well, they aren't amphibious.

Here's why:

* Amphibians are a distinct class of animals that have a life stage in water (tadpoles) and a life stage on land (adult frogs, toads, salamanders). They have specific adaptations for breathing in water and on land.

* Rodents, while some are semi-aquatic, are mammals and have no life stage in the water. They breathe air through lungs and have no adaptations for living submerged.

Some rodents are considered semi-aquatic:

* Beavers: Spend much of their time in water, building dams and lodges.

* Muskrats: Live in marshes and wetlands, and are excellent swimmers.

* Water voles: Found near rivers and streams, are adept swimmers.

These rodents, while comfortable in water, are not amphibians. They still require air to breathe and do not have the same adaptations as amphibians.