Fish, Amphibians, Reptiles, Birds, & Mammals Vertebrates Fish, Amphibians, Reptiles, Birds, & Mammals By: Mrs. Meredith Sanders

Fish Chambers in their heart: 2 Structures for movement: Fins Reproduction: Lay eggs in the water Organ that keeps them afloat: Swim bladder Body temperature: Cold-blooded Breathe: Through gills

Amphibians Spend part of their lives in water and part on land Do not have scales or hair Some have tails throughout life and some lose their tail (Salamanders have tail throughout life; frogs lose their tails when they get to be adults) Caecilians have no limbs Frogs have smooth, moist skin; Toads have rough, dry skin. Newts have tails throughout life. Amphibians use color as camouflage and also to warn others of their danger. Amphibians burrow in the mud during winter and absorb oxygen through their skin.

Reptiles Covering:Dry protective scales or plates 4 limbs with clawed toes Turtles that live in water have flippers instead of clawed toes Largest reptiles:crocodiles and alligators Eggs are leathery

Birds Body Temperature: warm-blooded Down feathers to keep warm Contour feathers to fly Getting oxygen: though lungs and air sacs Muscles used to fly: Chest muscles Three ways that flying is useful: escape predators, find food, and migrate Adaptations for flight: tiny holes in bones to make them lighter, streamlined shape, lightweight beak, & no teeth

Mammals Chambers in heart: 4 Have hair Mammary glands to give milk to young Have live birth Monotremes: lay eggs Marsupials:pouched mammals that give live birth and babies crawl into pouches until matured Placentals: give live birth; baby attached with umbilical cord

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