Six Ways to Celebrate Pi Day

Today is March 14, or 3.14, the day we celebrate the mathematical constant pi (π)

An Octopus Vulgaris at the Palma Aquarium in Spain

Fourteen Fun Facts About Squid, Octopuses and Other Cephalopods

The cephalopod world is huger and more fascinating than the limited taste of the restaurant world

The Arctic National Wildlife Refuge contains vital habitat for polar bears who rely on the border of terrestrial and marine ecosystems.

Fifty Years of Arctic National Wildlife Preservation

Biologist George Schaller on the debate over ANWR conservation and why the refuge must be saved

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Tyrannosaurus Scat

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