Exist very much animal that can be the Chess Knight , but you can say which animal is the best to exchange. please comment

To an elephant?

an alpaca!

kangaroo, or a gerbil

i agree with onosson a kangaroo would be good

or a frog

A manatee.

Liger.

lol

Monkey

Bunny rabbit.  Hippity hop hop:))

wait, I take mine back... for a lolcat

http://www.chess.com/forum/view/fun-with-chess/chess-lolcat

Snake because it makes sense from the jumping over pieces it slithers

I know! To a donkey!

Pegasus maybe?  It would have an easier time jumping from a standstill position than a horse would.

a penguin or an ostrich

pegasus would make an awsome chess piece! ( even tho its just a horse with wings)

hmm I think something like a tiger or a cobra would be cool too, but it doesnt match the war theme in chess

It would have to be a Raging Chess Bull!

How about tauntauns ?

Mr. Tumnus!