Scientists found the deepest land animal on Earth, and it turned out to be a tiny worm |– timesofindia.indiatimes.com

There is a worm living in water-filled cracks in ancient rock in a South African gold mine that has no business being there. It’s smaller than a grain of rice. It has no eyes, and it exists in conditions that most animals, even some of the toughest on Earth, simply could not cope with. Meet Halicephalobus mephisto, or the devil worm, as it’s more commonly known. This little worm blew scientists’ previous understanding of life on Earth.

A discovery that no one saw comingIn 2011, scientists announced they’d found a living nematode worm 1.3 kilometres (0.8 miles) below the Earth’s surface, about as deep as four Empire State Buildings on top of each other. The discovery, announced in the study Nematoda from the terrestrial deep subsurface of South Africa, was instantly significant. Not that nematodes were especially glamorous, but because there had never been a nematode found so far underground. Bacteria and microbes, sure. However, a multicellular animal? That was meant to be impossible.