4. Webbed feet to help swim Flight feathers to help them fly and eider feathers help keep them warm Light- colored feathers to camouflage Oily feathers keep them waterproof Long, flat bills to strain small plants and animals from the water

5. Huge pouch in bill to scoop up fish Webbing between all four toes help them be strong swimmers and propel them through the water Narrow and closed nostrils to prevent water from being forced into their airways when they dive

6. Migrate to different bodies of water Endothermic (warm-blooded) to maintain a constant body temperature no matter what temperature water they are in Sounds to help communicate, navigate, and hunt prey

7. Zebra sharks have many sharp teeth to catch prey. They have powerful tails to help them swim fast. They are camouflaged to hide while they wait for food.

8. Streamlined shape to swim Fins help propel dolphins in the water Blowholes to breathe Echolocation (help navigate in the dark ocean)

9. Chemical defenses protect them from predators since they are slow moving

10. Gills to breathe under water Can inflate to over three times its natural size Produces a deadly poison that can kill several people

11. Strong shell to protect itself from predators Scales to hold in water during droughts. Lay their eggs on land but may live in the water.

12. Can attach firmly to rocks so they are not swept away by waves Tough and leathery fronds to help protect them from being torn by the waves or dried out by the sun

13. Contain toxins that make them unappetizing Can digest parts of other coral that are invading their space