1. Animal Facts Presentation By: Jentrey Waugh Reptiles

2. Phylum: Chordata Class: Reptilia  Chordata: comprises true vertebrates and animals having a dorsal nervous cord  Reptilia: class of cold-blooded air breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates There are 4 Living Groups (Orders) Scientific Name

3. Characteristics adaptive to land internal fertilization As amniotes, reptile eggs are surrounded by membranes for protection and transport that adapt them to reproduction on dry land. development in a leathery shelled egg.

4. Characteristics Endoskeleton : bones, spinal columns with strong skeletal system strongest weapon is mouth four legs for walking (most, snakes have lost legs) 5 toes on limbs All have backbone (spinal)

5. Characteristics Exoskeleton : thick, scaly skin (major diff. between them and amphibians) scales- small rigid plate that grows out of an animals skin to provide protection. Larger size: cover body parts exposed to physical stress (feet, tail, head) Smaller size: around joints for flexibility Scales keep moisture inside the body (they can live far from water)

6. Habitat They can live almost anywhere because there are so many species (over 7,000) in all sizes. Found on every continent but Antarctica. Freshwater and terrestrial Tropics or subtropics Desert Forest Grassland Swamp Marsh Scrubland Jungle Kansas Reptile: Ornate Box Turtle

7. Life Cycle Reptiles do not have an aquatic larval stage. Courtship: different ways for males to (woo) females dependent upon species. Fertilization: Sexually- internally Lay Eggs: Many species bury eggs to protect against other predators Natural heat from earth incubates the egg so the animal candevelop. Females watch over eggs, nesting Birth: Reptile hatches from shell Begins to eat and grow No metamorphosis (babies look like mini adults) Develop into adults ready to procreate

8. Characteristics ectothermic, body temperature varies according to environment cold blooded (don’t need to consume much food to maintain a body temp) paired metanephric kidneys uric acid is the main nitrogenous waste Respiration: lungs instead of gills 3 (most) or 4 (crocodiles only) chambered heart well developed brains and central nervous systems developed senseorgans especially sight and smell

9. Lizards Snakes Worm Lizards Squamata Jacobson Organ - in the roof of mouth that acts like a nose so they stick out there tongue to smell Most have slender bodies, long tails, and clawed toes. Some have no legs Lizard Diet - insects, small animals,(Komodo dragon can eat deer) Chameleon eyes can move independently, can see forward and backwards at the same time. Watc h Me

10. Squamata Jacobson Organ. Most have slender bodies, no legs. Snake Diet: Animals, eggs Poor Vision, Can’t Hear, Feel vibrations No teeth, swallow Animal whole. Unhinging Jaw. Move by sliding on belly (land), waving body back and forth (water) Some species have fangs: filled with poisonous venom

11. Snake Feast!

12. Turtles Terrapins Tortoises Testudines Shell: Hide in shells to protect from attach Several boney plates that fit together like a jigsaw puzzle Camouflage designs (black, brown, and dark green) to blend in with environment No teeth, strong beaks Diet- eat plants and animals (snails) Can see more colors than humans do Watc h Me

13. Shell Comparisons

14. Tuataras Sphenodontia Nickname: “living fossils” haven’t changed much from ancestors Hunt at night Look like lizards, different skeletons live longer (often more than 70 years) Diet- (varies for species) leaves, fruits, flowers, insects, frogs, snails,birds, small lizards Sharp teeth

15. Crocodiles Gavials Caimans Alligators Crocodilia Adapted to live in water and on land Tail- acts like a paddle Nostrils and eyes high on head for peaking out of water while hunting “See-through eye lids”- eye lids cover eyes while under water like goggles Strong, huge jaws. Lined with sharp teeth for ripping prey apart eat food in large chunks or swallow whole Diet: fish, frogs, crabs, birds, other reptiles, pigs, deer, cattle, people* Snouts: Crocodiles- pointy Alligators/Caimans- rounder Gavials- long, narrow Watc h Me

16. Importance to Humans Ecosystem : Natural life cycle they eat many species we (humans) find undesirable Lizards eat insects Snakes eat rodents Without the links of the food chain many crops would be left defenseless against smaller, hungry predators like insects and rodents. Food Source: In many cultures turtles, lizards, snakes, and alligators are common in daily diets Retiles are a primary source of protein in some developing countries Over hunting has caused termination of some species Economy : Reptile skin for leather goods Shoes, pocketbooks, belts, handbags, boots Snake skin- similar products Pets: Some require little care to maintain others can be extensive!

17. Extinct Species

18. Bibliography Bibliography: Arnosky, J. All about turtles. Broadway, New York: Scholastic Press, 2000. Print. Cheshire, Gerard. Scary Creatures. Lizards. New York: Scholastic Inc., 2008. Print. Mader, S. Biology. 8 th edition, McGraw-Hill, New York, N. Y. McCarthy, Colin. Eyewitness Books: Reptile. New York: Dorling Kindersley, 2000. Print. Wearing, Judy. World of Wonder Sea Turtles. New York: Weigl Publishers Inc., 2010.Print. World Book's Animals of the World. Alligators and Other Crocodilians. Chicago: World Book, Inc. A Scott Fetzer Company, 2003. Print. World Book Animal Lives. Reptiles. Chicago: World Book, Inc. A Scott Fetzer Company, 2009. Print. Online: http://animaldiversity.ummz.umich.edu/accounts/Reptilia/ http://www.ehow.com/about_6469520_reptiles-important-humans_.html http://www.hbwbiology.net/taxonomy-reptiles.htm http://www.slideserve.com/maurilio/class-reptilia http://www.wisegeek.com/what-are-amniotes.htm