2. Mammals
 Mammals are warm-blooded that
nourish their young with milk secreted by
mammary glands, have the skin usually
more or less covered with hair.
 Some mammals are:
 Humans
 Lions
 Bears
 Dogs

3. Fish
Fish are cold-blooded
Fish are strictly aquatic
Fish are vertebrates
Fish have gills

4. Is a dolphin a
mammal or a
fish?