Prolonged droughts likely spelled the end for Indus megacities

New research involving Cambridge University has found evidence—locked into an ancient stalagmite from a cave in the Himalayas—of a series of severe and lengthy droughts which may have upturned the Bronze Age Indus Civilization.

Deceptive daisy's ability to create fake flies explained

A male fly approaches a flower, lands on top of what he thinks is a female fly, and jiggles around. He's trying to mate, but it isn't quite working. He has another go. Eventually he gives up and buzzes off, unsuccessful. ...

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