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Life & Evolution

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whale skeleton, formanifera skeletons, and a rhinoceros beetle exoskeleton

LIFE SUPPORT  Skeletons today are quite diverse, from the exoskeletons of tiny marine organisms known as foraminifera (bottom left) and rhinoceros beetles (bottom right) to the bones of mighty whales (North Atlantic right whale, top).

illustration of bird

RUN, BIRD, RUN  Birds most likely to have survived a mass extinction 66 million years ago would have been small (as seen in this artist’s depiction), able to fly and just fine living on the ground, researchers say.

Chixculub impact illustration

START FROM SCRATCH  The asteroid that hit Earth about 66 million years ago, wiping out most of the planet’s life, also spewed carbon dioxide into the air and heated up the climate for millennia, a new study suggests.

Life & Evolution

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