Reptiles, & Mammals, & Birds….Chapter 9

Traits of Reptiles

• Dry skin covered in scales• Leathery shell to prevent drying out• Ectotherms – cold-blooded• Include– Sea turtles – Sea snakes– Saltwater crocodiles– Marine iguana

Traits of Seabirds

• Flight!• Homeotherms (constant body temp.)• Endotherms (maintain metabolic heat)• Waterproof feathers (preen with oil)• Hollow bones• Hard shell• Include:– Penguins– Tubenoses– Pelicans– gulls

Traits of Marine Mammals

• Endothermic/homeothermic• Hair• Viviparous (live bearing) with placenta• Mammary glands• Large brain• Include – – Seals/sea lions/walruses– Sea otters/polar bears– Manatees/dugongs– Whales/dolphins/porpoises

Sea Turtle Crawl Egg LayingDigging the

Nest

Sea Reptiles• Green sea turtle -

http://www.youtube.com/watch?v=x-XwFBCjC-c&feature=related • Loggerhead Hatchlings -

http://video.nationalgeographic.com/video/animals/reptiles-animals/turtles-and-tortoises/turtle_loggerhead_baby/

• Turtle Excluder Device - http://www.youtube.com/watch?v=y71cgxmyMO4&feature=g-vrec

• Marine Iguana - http://www.youtube.com/watch?v=tO_9zm9tsCs • Saltwater Crocodiles –

http://www.youtube.com/watch?v=-Tbsgo8s4L8 (reproducing)• http://www.youtube.com/watch?v=UiRf_eYihS4

(Catching fish)• Sea snakes -

http://animal.discovery.com/videos/sea-of-snakes-diving-for-snakes.html

Sea Birds• King Penguins- http://www.youtube.com/watch?v=B71T_GpA2AM• Emperor Penguin -

http://www.youtube.com/watch?v=MfstYSUscBc&feature=relmfu • Emperor Penguins vs. Leopard Seal

http://www.youtube.com/watch?v=r3RElQWsh34&feature=related

• Sea Birds http://www.youtube.com/watch?v=cG8BfVvtGPQ • Atlantic Puffin - http://www.birds.cornell.edu/page.aspx?pid=1084 • Albatross -

http://www.dailymotion.com/video/xfsc3g_learn-all-about-the-albatross-bird_news http://www.youtube.com/watch?v=TUS8uQnx1VA

• Cormorant - http://www.arkive.org/cormorant/phalacrocorax-carbo/video-08.html

Marine Mammals• Pinnipeds

– Seals - http://bbcearth.com/programmes/seals-invaders-sea– Sea Lions - http://www.youtube.com/watch?v=iXcxryr-p4U– (Sea lion vs. killer whale - http://www.youtube.com/watch?v=DWsN63PRCW8). – Walrus mom -

http://video.nationalgeographic.com/video/animals/mammals-animals/seals-and-manatees/walrus_cuddle/– Ice melt and sea walruses -

http://video.nationalgeographic.com/video/news/animals-news/us-walrus-haul-vin/ • Sea otter and kelp - http://www.youtube.com/watch?v=v_aSl3iL7rM • Sea otter and disease -

http://video.nationalgeographic.com/video/animals/mammals-animals/otters-and-meerkats/otter_sea_toxoplasmosis/

• Polar Bears - http://dsc.discovery.com/videos/planet-earth-ice-world-polar-bears.html • Dugongs -

http://video.nationalgeographic.com/video/animals/mammals-animals/seals-and-manatees/dugong/ • Blue Whales -

http://video.nationalgeographic.com/video/animals/mammals-animals/whales/whale_bluecalls/ • Blue Whales - http://www.youtube.com/watch?v=jcSQGw2Svjs• Humpback Whale -

http://video.nationalgeographic.com/video/animals/mammals-animals/whales/whale_humpback/ • Dolphins -

http://video.nationalgeographic.com/video/animals/mammals-animals/dolphins-and-porpoises/dolphin_bottlenose_aggressive/