1. SHARK ANATOMY SARASOTA FINS © 2015 www.sarasotafins.weebly.com This will cover: Eyes Teeth Gills Fins Skin Ampullae of Lorenzini

2. Eyes  Many sharks rely heavily on their eye sight (like great white shark chasing seal) and others rely on other senses. It just depends on the lifestyle of the shark!  Some sharks can see colors- others cannot.  Almost all sharks can see very well in low light.

3. Eyes  How sharks protect their eyes while eating: either rolling their eyes back or covering their eye with a special eyelid, called a “nictitating membrane.”

4. Teeth Shark teeth are specialized by shark species! Not all sharks have the same teeth. Here we have two examples: the top belongs to the sandy dogfish. The bottom teeth belong to sand tiger sharks.

5. Look at all the different shark teeth shapes!

6. Gills  Most sharks have 5 gill slits. Some, though, have six or seven! The gills of the shark are circled here.  Gills help sharks breathe. They don’t have lungs like we do. Gills take oxygen from the water!

7. Fins  Sharks have a lot of fins!  These fins have different purposes.  Not all sharks have the same fins.

8. Pectoral Fins  The pectoral fins helps the shark not sink (they’re pretty heavy- even under water)! They can also help with steering the shark.

9. Pelvic Fins  Pelvic fins help keep the shark stabilized during swimming!

10. Dorsal Fins  The dorsal fins (some sharks have two– and they may be different sizes or the same sizes) help keep the shark stabilized during swimming.

11. Anal & Caudal Fin Anal Fin  The anal fin is between the pelvic and caudal fins. Not all sharks have anal fins! They’re mostly used for extra stability while swimming. Caudal fin  This fin is what propels the shark forward—and its shape changes depending on the shark’s life style!

12. Different caudal fins

13. Skin  Shark skin isn’t like other fish skin! Instead, they’re made up of teeth similar to those in their mouth!  It’s super tough and protects the shark like an armor.

14. Ampullae of Lorenzini  This is a picture of a shark’s snout! What are those weird dots?  They’re called the Ampullae of Lorenzini. They are pores filled with jelly that can detect electrical fields and temperature.  Some sharks have as many as 1500 around their snout while others may just have a few hundred.