The millions of species humans share the world with are valuable in their own right. When one species is lost, it has a ...

(CNN) — No species lasts forever — extinction is part of the evolution of life. But at least five times, a biological catastrophe has engulfed the planet, killing off the vast majority of species from ...

For a long time, the prevailing theory was that dinosaurs were already in decline before the Chicxulub asteroid struck Earth ...

Humans have long tinkered with the evolutionary trajectories of other species. Thousands of years ago we tamed wolves into dogs and transformed a wild grass into the agricultural wonder wheat. Within ...

The end-Triassic extinction, which happened 201 million years ago, was Earth’s third most severe extinction event since the dawn of animal life. Like today, CO 2 rise and global warming were present, ...

The tragic news of the loss of the world's last remaining northern white rhino begs the question: Can it be brought back?

Dire wolves were massive and highly intelligent animals nearly the size of a small horse, capable of ripping a man’s arm off as easily as a dog kills a rat. They lived in cold regions in a place ...

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