A newly described fossil reveals that leeches are at least 200 million years older than scientists previously thought, and that their earliest ancestors may have feasted not on blood, but on smaller ...

Add Yahoo as a preferred source to see more of our stories on Google. Credit: Mai Fahmy Many debates rage on: the meaning of life, the existence of a ‘higher power’, but are you aware that for more ...

There has long been anecdotal evidence of the wormy creatures taking to the air, but videos recorded in Madagascar at last prove the animals’ acrobatics. By Veronique Greenwood Veronique Greenwood ...