The only animal that can survive in space holds the key to planet Earth's future  Tiny tardigrades, also fondly referred to as water bears, are truly amazing: these seemingly indestructible creatures

New research from the University of Oxford says the tiny "water bears" will be Earth's last survivors.

Key to Tardigrades' 'Superpowers' Identified in Their DNA. When tardigrades dry out, they retract their legs and heads, transitioning into a form called a "tun." This image shows a scanning electron