Extinction

Tasmanian tiger 'sightings' prompt new scientific hunt

Earth's tiniest porpoise approaches extinction

Should we resurrect extinct species?

14 extinct animals that could be resurrected

9 extinct megafauna that are out of this world

Hawaiian crows return from extinction in wild

Baby dinosaur's tail — with feathers — found in 99 million-year-old amber

7 interesting facts about Lucy the ancient ape

Ancient sea cow fossil found in decades-old street slab in Spain

The animals in this video aren't around any more

10 animals presumed extinct in the last decade

U.S. declares bees endangered for first time

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