Rethinking planetary climate controls

Yale researchers have provided a new explanation for why Earth's early climate was more stable and warmer than it is today.

Chillier winters, smaller beaks

Although Charles Darwin lived and worked in the 19th century, modern evolutionary biologists are far from exhausting all avenues of inquiry regarding birds and evolution. For example, in the 1990s, researchers such as Russ ...

Animals, not drought, shaped our ancestors' environment

The shores of Lake Turkana, in Kenya, are dry and inhospitable, with grasses as the dominant plant type. It hasn't always been that way. Over the last four million years, the Omo-Turkana basin has seen a range of climates ...

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