From different body parts of different animals
By watching different animals in different places of the world.
There are many different zoos in the world, and they come in different sizes; larger zoos can have thousands of animals in them.
It's different ailments for different animals
alot
About 7 to 10
i really have no idea...maybe their saying that if different animals can have sexual intercourse, so can different races of people
Because animals had fleas which carried the disease and once the animals died the fleas jumped onto more animals which carried to disease to different places.
Each animal comes at a different time in the day and they are attracted to different things too. Check out the zoo to read all about what the animals like.
There are MILLIONS of animals in the world's oceans. Explorers are still discovering new life forms.
Different animals have different reactions before earthquakes. Animals that would be hibernating would stop hibernating and come out from their holes/burrows. Dogs would dig on the ground.
The two different organisms are plants and well humans and animals. they come from the different shape and ways of their cells, such as the vacules or the nucleus and its placement.