Students model natural selection by using various utensils to "capture food" using a simulated species called "Woolybooger's."

Find out about endangered animals featured here from the IUCN Red List of Threatened Species. Search through thumbnails to view previous months' species of the day to learn more.

Alphabetical listing from the University of California of info on each of the animal phyla. Includes scientific and common names and photos. Characteristics of each group are explained in detail.

Gray wolves were a frequent sight on the American plains, however, they are now an endangered species despite attempts to reintroduce them to their former habitats in the continental United States. Learn about their natural history in...