amphibians and reptiles

AMPHIBIANS AND REPTILES

S O M E A R E S L I M Y … S O M E A R E N O T !

AMPHIBIANSCLASS: AMPHIBIA

• Vertebrates that are aquatic as larvae and terrestrial as adults•Have moist skin, lack scales and claws, and adults breath with skin and lungs

• Smallest vertebrate class (4000 species)• It has three orders: • Frogs and toads (order ANURA)• Salamanders and newts (order CAUDATA)• Legless amphibians (order APODA)

AXOLOTL: MEXICAN SALAMANDER OR “WALKING FISH”

REPTILES

• Vertebrates with adaptations that enable them to live entirely on land• Have lungs that are more efficient than amphibians, scaly skin to prevent drying out, amniotic egg with shell, yolk and several protective membranes

4 ORDERS OF REPTILES

• Snakes and lizards• Crocodilians• Turtles, tortoises + terrapins• Tuataras (last species of an order

common in time of dinosaurs)

TURTLE:LIVE IN SALT WATER

TORTOISE:LIVE ON LAND

TERRAPIN:LIVE IN, OR AROUND, SWAMPS AND FRESH

WATER

TUATARA:NOT A LIZARD, THOUGH IT LOOKS

LIKE ONE. LIVES ONLY ON NEW ZEALAND

Parietal eye: photoreceptor