Ken Grewe plunges his hand into the bottom of a small, black plastic bag - as if he were searching for remaining treats in a sack of candy. What Grewe is seeking is anything but sweet. Like he has for ...

Leeches suck blood from a young patient's during a therapy session in India. Credit: FAROOQ KHAN/EPA/REX/Shutterstock Medical bills are often littered with bizarre ...

White men can’t jump, but terrestrial leeches can. This is now a scientific fact; after centuries of anecdotal reports, the parasites have been caught on video leaping from leaves in the Madagascan ...

A broad survey conducted across southern Asia reinforces the idea that the mammal biodiversity of an area can be determined by looking at the DNA found in leeches' blood meals. The new study also ...