The fossil leech compared with a modern leech. Double arrows indicate the large caudal sucker used for attachment, single arrows indicate body annulations. A newly described fossil reveals that ...

Leeches have evolved a strategy for hunting worms that is the ultimate death spiral.

A new study presents video evidence that at least one species of terrestrial leech can jump, behavior that scientists have debated for more than a century. A new study presents video evidence that at ...

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 ...

(via Journey to the Microcosmos) Of all the animals that we’ve examined in the microcosmos, leeches are probably one of the few that can be used as a verb, to leech off someone—to take and take from ...