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A cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin,

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Presentation on theme: "A cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin,"— Presentation transcript:

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2 A cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin, and typically laying soft-shelled eggs on land

3 Hard Shell (usually) Carapace and plastron Oviparous Internal fertilization Often times lacking teeth

4 Alligator Snapping Turtle Macrochelys temminckii

5 Hieroglyphic River Cooter Pseudemys concinna

6 Red Eared Slider Trachemys scripta

7 Largest order of reptiles (more than 6000 species) Loosely hinged jaw Skin is shed May be limbless Found all over the world!

8 Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external earscarnivorous reptileslegless lizards Paired organs are usually found one in front of the other One functional lung

9 Smell the air with their forked tongue Lack chewing teeth and must swallow prey whole May or may not be venomous How can we tell?!

10 VenomousNon-Venomous 4 nostrils (2 are pits) Fat broad bodied Broad spade shaped heads (triangle) Slited pupils 2 nostrils Head is about the same width as the body Round pupils

11 Eastern Hognosed Snake Heterodon platirhinos

12 Water Moccasin Agkistrodon piscivorous

13 Queen Snake Regina septemvittata

14 Lizards typically have feet and external ears, while snakes lack both of these characteristics. However, because they are defined negatively as excluding snakes, lizards have no unique distinguishing characteristic as a group.

15 Can have well developed color vision Use a combination of body colorations, body positions and pheromones to communicate.

16 Eastern fence lizard Sceloporus undulatus

17 Five lined skink Eumeces fasciatus

18 Alligators, Crocodiles, Gharials, and Caiman Closest relation to birds Belly walk or more upright run for a period of time

19 Alligator Vs Crocodile

20 AlligatorCrocodile Rounded U-shaped snout Hidden teeth; except upper jaw teeth Pointy V-shaped snout Visible teeth that interlock


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