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VOCAB. CHELONIA TURTLES & TORTOISES. Only reptile WITH shell Only reptile WITHOUT TEETH. TURTLES: Live in or near water. TORTOISES: Stay on land. http://www.perlgurl.org/archives/2006/05/hawaiian_honu_the_green_sea_turtle.html

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VOCAB

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VOCAB


CHELONIATURTLES & TORTOISES

  • Only reptile WITH shell

  • Only reptile WITHOUT TEETH

TURTLES: Live in or near water

TORTOISES: Stay on land

http://www.perlgurl.org/archives/2006/05/hawaiian_honu_the_green_sea_turtle.html

http://www.carcosa.net/jason/blog_images/2005/07/04/african-spurred-tortoise.jpg


SQUAMATA

LIZARDS SNAKES

http://thecontaminated.com/wp-content/uploads/2008/02/snake-and-kangaroo-1.jpg

http://www.crocodilehunter.com/our-animals/amazing-animals/images/profile_157_250.jpg


JACOBSON’s ORGAN

  • An extrasensory organ in the roof of a snake's mouth

  • Sharpens its sense of smell.

  • Two hollow, highly sensitive saclike structures

  • Allows it to track both prey and potential mates

http://www.kwic.com/~pagodavista/schoolhouse/species/herps/snktonge.htm


Pit vipers, pythons, and some boas have HEAT SENSING ORGANS

  • “Pit" organ located between the eye and the nostril on each side of the head.

  • Detects heat given off by warm-blooded prey

http://www.kwic.com/~pagodavista/schoolhouse/species/herps/snktonge.htm


http://www.thematzats.com/snakes/images/squeeze.gif

Constrictors

  • Wrap around prey and kill by suffocation

  • Ex: Boa constrictors

http://www.eastrock.org/brazil/images/bra19.jpg


VIPERS

  • Inject venom with large movable fangs

    Ex: rattlesnakes, copperheads, water moccasins

Images from:

http://www.worsleyschool.net/science/files/rattle/snakes.html


ELAPIDS

  • Inject venom with small fixed (non-movable) fangs

    Ex: cobras,

    kraits,

    coral snakes

http://www.kidsturncentral.com/animals/cobra.htm


AUTOTOMY seen in some lizards

  • Self amputation to escape predators

  • Can’t regrow

  • Costly; lose muscle/stored fat

http://www.californiaherps.com/lizards/images/ecprincipis1dn.jpg


CROCODILIACrocodiles & Alligators

Crocodile

Long V-shaped snout

Teeth exposed when jaw shut

Brackish/ocean water

Alligator

Rounder U-shaped snout

Teeth hidden when jaw shut

Fresh water

Images from: http://www.animaldanger.com/australia.php


RHYNCHOCEPHALIA“spiny crested” lizard relatives

  • Once common

  • now only two species of tuatara

  • on islands near New Zealand

  • Parietal “3rd eye”

Images from: http://en.wikipedia.org/wiki/Tuatara

http://reptilis.net/rhynchocephalia/overview.html


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