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Notes on Marine Reptiles

Notes on Marine Reptiles - in order to lay their eggs Sea...

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Notes on Marine Reptiles Marine Reptiles About 7,000 living species of reptiles exist Reptiles are air breathing organisms Reptiles have dry scales covering their skin in order to prevent water loss Most reptiles lay their eggs on land o The eggs have a leathery shell that helps prevent drying out. Reptiles are ectotherms and poikilotherms   o Ectotherm : these are organisms that lose metabolic heat to its environment without  having their body temperature affected. o Poikilotherm : these are organisms that have a body temperature that will vary with that  of the environment.   Sea Turtles The body is covered by its shell or carapace. o Sea turtles are unable to retract their heads into its shell The  leatherback sea turtle  is the largest type of sea turtle. Sea turtles are oviparous and reproduce on land, and they normally migrate very long distances 
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Unformatted text preview: in order to lay their eggs. Sea Snakes • Sea snakes are typically found in the tropical Pacific and Indian oceans. • Sea snakes are ovoviviparous and mate in the ocean • They are carnivores, feeding mostly on bottom fishes • Sea snakes are venomous, but they are hardly aggressive Marine Iguana • Marine iguanas are only found in the Galapagos Islands. o Galapagos Iguana is the only known species of marine lizard. Saltwater Crocodile o Saltwater crocodiles inhabit mangrove swamps and estuaries. o They live mostly on the coast, but can swim into the rivers and even the open sea. o They are considered the most aggressive marine animals...
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