Mystery over humpback whale sightings in English Channel - The 30-tonne mammals have been spotted from Sussex and the Isles of Scilly over the last month ...

Although they came into their own only after the extinction of the dinosaurs some 65 million years ago, mammals had maintained a low-profile existence for some 150 million years before that.

The Case Against Marine Mammals in Captivity was first produced in 1995 as a comprehensive resource for the public, the media, scientists, students, and policymakers to learn the various arguments ...

From the top of Shifting Sands dune in the Serengeti Plain of Africa a million mammals are in motion. Wildebeests. Zebras. Gazelles. The plain is black with them. It is wildebeest calving season ...