Question

what is the blue animal in the world​

Answer 1

Explanation:

Linckia laevigata is one of the few blue animals whose coloration is caused by a pigment rather than by structural coloration. The species produces a carotenoprotein known as linckiacyanin, which is made up of multiple different carotenoids, giving the sea star its distinctive blue color.

Answer 2

Blue whale, Peaock,etc...