A Whale is a Mammal but it's still a Fish ...

[dogtag]

It has fins, a tale and it lives in the Sea.
It looks like an extremely large Sardine.
A Monkey is also a Mammal, it inhabits trees,
it's an Arboreal but it's still a Monkey
Lions Tigers and Bears are Mammals, the cats
belong to the Panther family. They live in Jungles.
The Bears are from the Pooh family and they love Honey.

[Allen]

A rooster and a goose could produce a gooster if they didn't chicken out.

[lyman]

Whales,,,,

https://www.youtube.com/watch?v=Qrv9c-udCrg