Sharks

Hello guys!!! It's artcher and today I'm going to tell you some interesting facts about sharks!!!

Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha and are the sister group to the rays. Wikipedia

Lifespan: 20 – 30 years (In the wild)

Kingdom: Animalia

Class: Chondrichthyes

Phylum: Chordata

Superorder: Selachimorpha

Subclass: Elasmobranchii

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Artcher