Newfound ancient African megadroughts may have driven the evolution of humans and fishes

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View of the Lake Malawis lush vegetation. Credit: Courtesy of the Lake Malawi Drilling Project
View of the Lake Malawi's lush vegetation. Credit: Courtesy of the Lake Malawi Drilling Project

From 135,000 to 90,000 years ago tropical Africa had megadroughts more extreme and widespread than any previously known for that region, according to new research.


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All News summaries for October 08, 2007

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A young whale pokes its melon-shaped head into the cool morning air near this remote island, a sign its herd is thriving despite mounting threats in Russia's melting Arctic.

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Judge: EPA must regulate ship water discharge

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(AP) -- An appeals court Wednesday upheld a ruling ordering the Environmental Protection Agency to regulate the water discharged from ships as a way to protect local ecosystems from invasive species.
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