Hybrid animals, also known as crossbreeds, are created by combining two different animal species. Hybrids have been around ...

Animals can be divided into groups ... Reptiles can live in many different places, like deserts, forests, and oceans. Some examples of reptiles are snakes, lizards, crocodiles, and turtles!

Trainers: Come on, baby! Right here, come on! Narrator: From penguins to house spiders, let's look at how 10 different members of the animal kingdom prepare for some of Hollywood's biggest roles.

Volterra, V. Variations and Fluctuations of the Numbers of Individuals in Animal Species Living Together. Reprinted in 1931. In: Chapman, R.N. Animal Ecology. McGraw-Hill, New York (1926).