Animals

1. Amphibians

1.1. Live on land and water

1.2. Breathe through moist skin underwater

1.3. Breathe through lungs on air

1.4. Reproduce by laying eggs

1.5. E.g. Frogs, Salamanders

2. Birds

2.1. Outer covering: Feathers

2.2. Have a beak, a pair of wings, and a pair of legs

2.3. Reproduce by laying eggs

2.4. E.g. Geese, Pelicans, Parrots

3. Fish

3.1. Live in water

3.2. Outer covering: Scales

3.3. Use gills to help them breathe underwater.

3.4. Use fins to help them swim

3.5. Most fish reproduce by laying eggs

3.5.1. Some fishes give birth to their young alive (e.g. Guppies)

3.6. E.g. Tilapias, Goldfish, Sharks