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Butterflies change wing color in new Yale research

Eastern Swallowtail Butterfly and Sunflower by robin.

Male Leopard lacewing (Cethosia cyane) Inner side

'Third eye' helps sea turtles sense changes in seasons

from Live Science

Urban Legend Debunked: Rats Don't Outnumber People in NYC

Contrary to an urban legend, there are not as many rats as people in New York City, a new study shows. A statistician says a generous estimate for the rat population would be 2 million — far fewer than New York's 8 million people.