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Hawaiian monk seals are among the wildlife found within the Papahānaumokuākea World Heritage Site.

slideshow

Endangered Ocean Animals

The Endangered Species Act (ESA) was signed into law on December 28, 1973 by...

Mon, 12/02/2013 - 14:00

A hippopotamus-like creature swims underwater

Article

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

In the seagrass beds and kelp forests of the Oligocene-Miocene transition, nearly...

August 2016

Polar bears are threatened by a lack of sea ice.

Climate Change at the Poles

At the ends of the Earth, life thrives despite extreme conditions. In the Arctic...

September 2011