VOCAB

CHELONIATURTLES & TORTOISES

• Only reptile WITH shell• Only reptile WITHOUT TEETH

http://www.perlgurl.org/archives/2006/05/hawaiian_honu_the_green_sea_turtle.htmlhttp://www.carcosa.net/jason/blog_images/2005/07/04/african-spurred-tortoise.jpg

TURTLES: Live in or near water TORTOISES: Stay on land

SQUAMATALIZARDS SNAKES

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

Constrictors• Wrap around prey and kill by suffocation

• Ex: Boa constrictors

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

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

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

CrocodileLong V-shaped snoutTeeth exposed when jaw shutBrackish/ocean water

AlligatorRounder U-shaped snoutTeeth hidden when jaw shutFresh waterImages 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/Tuatarahttp://reptilis.net/rhynchocephalia/overview.html