aniamls

1. mammals

1.1. A warm blooded animal.

1.2. Include human beings and all other animals that feed their young with milk produced by mammary glands and usally have skin mostly with hair.

2. amphibian

2.1. A cold blooded animal.

2.2. Unlike reptiles, most amphibians possess a smooth, moist skin and lay their shell-less eggs in water or wet places.

2.3. https://www.google.ca/search?q=fish&source=lnms&tbm=isch&sa=X&ved=0ahUKEwib_N3I6evZAhUjUt8KHZAmDtcQ_AUICigB&biw=1366&bih=654&safe=active&ssui=on#imgrc=XHtVC5herKQ8iM:

3. reptiles

3.1. A cold blooded animal.

3.2. An animal that crawls or moves on its belly (such as a snake) or on small short legs (such as a lizard).

3.3. https://www.google.ca/search?q=cutelizard&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj18dCS6uvZAhXLUt8KHQzIBu4Q_AUICygC&biw=1366&bih=654&safe=active&ssui=on#imgrc=kgOa5nYXv-LAEM:

4. fish

4.1. A cold blooded animal.

4.2. Animal that lives in water, breathes with gills, and usually has fins and scales.