Machhri

Machhri ek rakam ke vertebrate hae jon ki paani me rahe hae. Iske body chuinta ke coveed raha hae aur iske lage dui fin rahe hae. Jaada kae ke machhri cold-blooded rahe hae.

Blue Shark

Carp

Fish come in many shapes and sizes. This is a sea dragon, a close relative of the seahorse. They are camouflaged as floating seaweed.

Duncklosteus, a giant armoured arthrodire of the late Devonian. Inland seas of North America, up to 6 metres long.