Shark fish: Sharksare a group of elasmobranch cartilaginousfishescharacterized

Sharksare a group of elasmobranch cartilaginousfishescharacterized by a ribless endoskeleton, dermal denticles, five to seven gill slits on each side, and pectoral fins that are not fused to the head. Modernsharksare classified within the division Selachii[1] and are the sister group to the Batomorphi (rays and skates). Oct 19, 2025 ·Shark, any of numerous species of cartilaginous fishes that make up the order Selachii (class Chondrichthyes). Most species have a tough skin that is dull gray in color and roughened by toothlike scales. The mouth contains sharp triangular teeth.Sharkslack a swim bladder and must swim to keep from sinking. Aug 20, 2025 ·Ever wondered what it would be like to face off with some of the world's biggest predators? Find out how in this guide toSharkfishing.