New research shows that turtles are responding to climate change by nesting earlier. New research shows that turtles are responding to climate change by nesting earlier.

Painted lady butterflies are world travelers. The ones we encounter in Europe fly from Africa to Sweden, ultimately returning to areas north and south of the Sahara.

In 1972, the US meteorologist Edward Lorenz asked a now-famous question: Does the flap of a butterfly’s wings in Brazil set off a tornado in Texas? Over the next 50 years, the so-called “butterfly ...

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