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Life & Evolution

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marsupial lion illustration

NEW MARSUPIAL LION  A newly named species of extinct marsupial lion (illustrated) was dog-sized but probably as fierce as anything in its forest. 

narwhals

FREEZE AND FLEE  Narwhals, mammals known as “unicorns of the sea” for their single tusk, have another oddity: Their hearts slow to near-arrest during frantic flights into the deep.

dolphin jumping

LISTENING IN  A computer code picked out six new types of dolphin clicks from several months’ worth of underwater sound recordings.

Life & Evolution

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