Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

Over a million species of animals and plants are now hanging by a thread, more than ever before in human history, says the International Science-Policy Platform on Biodiversity and Ecosystem Services ...

In a perfect world, we'd still be co-existing with the dodo, woolly mammoth, and quagga, but sadly, these are among the 900+ extinct animal species. Climate change, pollution, and human predation are ...