Animal Classification
Mammals
- are warm-blooded
- have lungs and need air to breathe
- have ears that stick out
- mothers nurse their young with milk
- give birth to live young
- have fur or hair
Birds
- have ear holes instead of ears
- have feathers and wings
- have webbed feet
- are warm-blooded
- have two legs
- lay eggs
Fish
- breathe underwater using gills
- lay lots and lots of eggs
- have scales and fins
- live in water
Reptiles
- usually lay eggs but sometimes give birth to live young
- have ear holes instead of ears
- mostly have 4 legs but some have none
- are cold-blooded
- have dry skin
- have scales
Amphibians
- breathe with lungs and gills
- have moist, smooth skin
- live on land and in water
- are cold-blooded
- lay may eggs
Insects
- may have wings or an antennae
- have exoskeletons
- have 2 or 3 body parts
- have 6 or 8 legs
- are cold-blooded
- lay eggs
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