Principles of taxonomy -- Formal classification of mammalia -- Review of mammalian classification -- Bibliography -- Index to technical names -- Index to vernacular ...

National Geographic estimates there are between 50 billion and 430 billion birds populating the planet, outnumbering humans by up to approximately 50 times. Spread across 9,700 species, according to ...

A REMARK made by Prof. Allen Thomson on this subject in a late number of NATURE induces me again to draw attention to some objections I offered to the placental classification in a review of Prof.

Renowned naturalist and three-time Emmy Award-winner Sir David Attenborough (Seven Worlds, One Planet, Blue Planet II) is set to present the next major natural history series, Mammals, premiering on ...

From reptile-like ancestors to humans, the new book The Rise and Reign of the Mammals tackles the diversity of mammals like us. The following is an excerpt from The Rise and Reign of Mammals: A New ...