Unusual Sharks.

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Presentation transcript:

Unusual Sharks

Demersal- fish that live on the bottom of the ocean Rays 500 species Usually have live young Modified body Flattened body Thin tail Enlarged pectoral fins 5 gill slits on ventral side and Eyes on top Demersal- fish that live on the bottom of the ocean Stingrays Whip like tail with spine Barb on spine with venom Defensive only

Electric Rays Manta Rays Pectoral fins look like wings Not demersal Powerful electric charge of 200 volts! 2 special glands. Manta Rays Pectoral fins look like wings Not demersal Feed on plankton Up to 22 ft across!

Skates Fleshy tail No spines Lay egg cases