Bingowings said:

But fish breath.

Some are warm and they never drink.

Bingowings said:

Enders one was scientifically inaccurate and this one seems to have as many correct answers as an IQ Test.

I feel compelled to defend the riddle's integrity!

If breathing is the inhalation of air, fish don't "breathe", unless my middle school knowledge of fish is floundering.

And since fish are cold-blooded, shouldn't their body temperature be the same as death (ie temperature of surroundings)?

And if drinking is the ingestion of water, why not call it drinking? Unless you have other beverages in mind, in which case I would probably agree.