The document describes five animal groups - mammals, reptiles, amphibians, fish, and birds. Mammals give birth to live young that they feed milk to, and include humans. Reptiles have scales, lay eggs, and are cold-blooded. Amphibians can live both on land and in water. Fish breathe through gills, have fins and tails, and live exclusively in water. Birds have feathers, wings, lay eggs, and most can fly.

1. Mammals
Animals
Insects
? Reptiles
Birds Amphibians
Fish

2. Mammals
-Give birth to babies.
-Feed babies with milk.
-People belong to this
group.

3. Reptiles
• Cold-blooded animals.
• Have skins covered with scales.
• Lay eggs.

4. Amphibians
• Can live both in water and on land.

5. Fish
-Have a tail and fins.
-Have gills to breathe in water.
-Have scales on skin.
-Live in water.

6. Birds
• Have feathers & wings.
• Female birds lay eggs.
• Most birds can fly.

7. Insects
-Have six legs.
-Most insects have wings.
-Have three body parts.