The left hip and leg bones from a young female Paranthropus robustus discovered in South Africa show she was extremely short ...

Scientists say that only one in a thousand species that have ever lived survives today. The other 99.9 percent are extinct, gone forever. With few exceptions, the life span of individual species ...

This is because there is a limit to the number of individuals that can be packed into a particular community, such that as the number of species in the community goes up, the average population ...

Scientists are trying to save endangered animals from extinction by turning animal poo into offspring. Over one million ...

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).

Three vital provisions give the Act its teeth. It’s “citizen-suit” provision lets public-interest groups and individuals petition and sue sluggish federal agencies to make sure the Act protects ...