With high carbon dioxide, low oxygen and no photosynthesis, here’s how an entire ecosystem persists in Movile Cave, one of the most extreme environments on Earth.

Mars has many weird geological features, from deep underground cave-like systems formed ... hoping it would crack the ice and ...

Thankfully, so far, it's only been found in spiders located in several cave systems across the island of Ireland, including the Whitefathers' Caves on the Fermanagh/Cavan border. Named after Sir ...