Meet 10 of the rarest animals on earth whose very existence is threatened. These critically endangered species will soon be extinct without immediate action. Trump proposes new monument near Lincoln ...

Giant amphipod species Alicella gigantea, once thought to be very rare, is found to inhabit the majority of Earth's deep ...

In South Africa there’s a little-known ecosystem, containing more plant species than the entire Amazon, plants that are found ...

With under 40 pupfish left in the wild, they are possibly the rarest fish on the planet. With under 40 pupfish left in the wild, these are possibly the rarest fish on the planet. The Devils Hole ...

There are roughly 2.5 million known species on the planet, but scientists estimate that's only a fraction of the biodiversity on Earth. A new study shows we're finding new species like never before.