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Reptiles

Published on Nov 18, 2015

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1.

REPTILES

  • There are 4 orders of reptiles crocodilia, squamata, testudines, and sohenodontia
  • Their eggs have an additional membrane so they can be layed on land
  • Between these 4 orders there are over 10000 species
2.

CROCODILIA

  • Large aquatic tetrapods living off the tropics of Africa, Asia,the Americas, and Australia
  • Mostly freshwater living lakes rivers and ponds. They can better Tolerate saltwater cause they Have salt glands that filter out salt
  • Have more webbing on their back feet
  • Have a much higher aggression levels
  • Biggest recorded croc was 20.24' long and weighed 2,379 pounds
3.

SQUAMATA

  • These are scaled reptiles
  • Largest order of reptiles comprising of lizards, and snakes
  • Can move their jaws relative to their braincase
  • Range from 16mm to 6.6m
  • Have hemipenes that are everted for reproduction
4.

TESTUDINES

  • Lay their eggs on land and return to the water
  • Largest tortoise is the leatherback reaching weights of 2000 lbs
  • Thought to have night vision do to the number of rod cells in their retinas
  • Upper and lower jaws have horny ridges instead of teeth
  • Very intelligent better at navigating than white rats and are social creatures
5.

SPHENODONTIA

  • Also known as rhynchocephalia, are an offshoot from the true lizards and snakes
  • Only one living genus and species, the tuatara
  • They are greenish brown and gray in color
  • Can measure up to 31inches and weigh up to 2.9lbs
  • No external ear and a photoreceptive eye 2rows of teeth on top jaw 1 on bottom
6.

FEATURES

  • They are cold-blooded
  • Have dry skin
  • And have scales instead of fur
  • They all lay eggs

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