Extinction

6 things to know about Earth's 6th mass extinction

Endemic species: Top 9 lonely animals

Rare aquatic cats that fish with their paws are on the brink of extinction

Earth's tiniest porpoise approaches extinction

5 reasons why biodiversity is a big deal

11 odd ways we protect endangered species

How to share Earth with other animals

Ancient flower discovered in fossilized resin could be 45 million years old

10 animals presumed extinct in the last decade

7 titanic facts about 'The Titanosaur'

Meet the planet's 25 most endangered primates

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