What is a 'mass extinction' and are we in one now?

For more than 3.5 billion years, living organisms have thrived, multiplied and diversified to occupy every ecosystem on Earth. The flip side to this explosion of new species is that species extinctions have also always been ...

Coral reefs and squat lobsters flourished 150 million years ago

Coral reefs and the abundant life they support are increasingly threatened today, but a snapshot of a coral reef that flourished 150 million years ago shows that many animals were then at their peak of diversity, just offshore ...

Jurassic crocodile identified in fossil study

A prehistoric crocodile that lived around 180 million years ago has been identified—almost 250 years after the discovery of its fossil remains.

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