1. Marine Biology Unit #5

2.  Vertebrates  Scaly skin  Lay eggs  Reptiles found in subtropics and tropics  Birds found from tropics to polar seas

3.  7000 species; arose about 325 mya  Walking or crawling on two pairs limbs  Lungs  Waterproof eggs  Ectothermic  Dry scales Sea turtles Sea snakes Marine iguana Saltwater crocodile

4.  Found in tropics and subtropics  Head not retractable into carapace  Flippers  Bouyant  7 species  Endangered

5.  Green Sea Turtle Tropical Grows to 1 meter Eats seagrasses

6.  Hawksbill Turtle Smaller Red-brown shell Carnivorous

7.  Leatherback Turtle Largest sea turtle Up to 2 meters; 500 kg Shell not solid Eats jellies

8.  Loggerhead Turtle < 1 meter Florida Eats crustaceans

9.  Ridley Sea Turtles Kemp’s  Smallest sea turtle  ~ 60 cm long  Gulf of Mexico Olive or Pacific  tropical

10.  Flatback Sea Turtle Northern Australia Coastal

11.  Mating in the water  Female buries about 100 eggs  Mates again  4-5 egg layings per year  Hatch? Dogs Crabs Varmints Birds Fish

12.  Found in tropical Pacific and Indian Oceans  50 species  Venomous  Paddle-shaped tail  Prey on bottom fish

13.  1 species; found on Galapagos Islands  Paddle-shaped tail  Feeds on seaweeds

14.  Inhabit mangrove swamps  Eastern Indian Ocean, Australia, and Western Pacific Ocean  Grow up to 10 meters  Aggressive

15.  Will attack and eat people (or sharks!)

16.  9700 species of birds; 300 are sea birds  Endothermic  Waterproof feathers  Hollow bones  Predators

17.  Penguins Most aquatic of all sea birds 18 species All in Southern Hemisphere Completely flightless Eats fish, krill, squid, shellfish

18.  Galapagos Penguin found on equator

19.  Shorebirds Sandpipers Oystercatchers Snowy egrets Sea gulls

20.  Diving Shorebirds Pelicans Cormorants Ospreys

21.  Diving Pelagic Birds Petrels Auks Gannets Puffins Albatrosses