Mammal
River otter
The river otter is a mammal.
Photo by USFWS Mountain-Prairie. Public domain · Source
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Unusual but true
A river otter can close its ears and nose when it dives.
Where it lives
River otters live by rivers and lakes.
What it eats
A river otter eats fish.
How big
About as long as a child, with the tail.
Places: River