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Reptiles & BirdsVertebratesScaly skin Lay eggs
Reptiles found in subtropics and tropicsBirds found from tropics to polar seasMarine Reptiles7000 species; arose about 325 myaWalking or crawling on two pairs limbsLungsWaterproof eggsEctothermicDry scalesSea turtlesSea snakesMarine iguanaSaltwater crocodile
Sea TurtlesFound in tropics and subtropicsHead not retractable into carapaceFlippersBouyant7 speciesEndangered
Sea TurtlesGreen Sea Turtle
TropicalGrows to 1 meterEats seagrasses
Sea TurtlesHawksbill Turtle
SmallerRed-brown shellCarnivorous
Sea TurtlesLeatherback TurtleLargest sea turtleUp to 2 meters; 500 kgShell not solidEats jellies
Sea TurtlesLoggerhead Turtle
< 1 meterFloridaEats crustaceans
Sea TurtlesRidley Sea TurtlesKempsSmallest sea turtle~ 60 cm longGulf of Mexico
Olive or Pacifictropical
Sea TurtlesFlatback Sea Turtle
Northern AustraliaCoastal
Sea Turtle ReproductionMating in the waterFemale buries about 100 eggsMates again4-5 egg layings per year
Hatch?DogsCrabsVarmintsBirdsFish
Sea SnakesFound in tropical Pacific and Indian Oceans50 speciesVenomousPaddle-shaped tailPrey on bottom fish
Marine Iguanas1 species; found on Galapagos IslandsPaddle-shaped tailFeeds on seaweeds
Saltwater Crocodiles
Inhabit mangrove swampsEastern Indian Ocean, Australia, and Western Pacific OceanGrow up to 10 metersAggressive
Saltwater CrocodilesWill attack and eat people (or sharks!)
Sea Birds9700 species of birds; 300 are sea birds
Endothermic
Waterproof feathers
Hollow bones
Predators
Sea BirdsPenguins
Most aquatic of all sea birds18 speciesAll in Southern HemisphereCompletely flightlessEats fish, krill, squid, shellfish
Sea BirdsGalapagos Penguin found on equator
Sea BirdsShorebirds
Sandpipers
Oystercatchers
Snowy egrets
Sea gulls
Sea BirdsDiving Shorebirds
Pelicans
Cormorants
Ospreys
Sea BirdsDiving Pelagic Birds
Petrels
Auks
Gannets
Puffins
Albatrosses