As doctors visited the home of a 65-year-old farmer in North Wollo, Raya Kobbo, he told them his saliva had tints of blood, occasionally bright red, according to a medical case re ...

Doctors grabbed the leech with forceps and carefully removed the animal, now nearly 4 inches long after feeding on the man’s blood supply for at least a week, according to the report.

“Scientists searching leech guts to unravel which animals they’ve fed on may interpret their findings differently if the ...

But leeches aren’t just useful at crime scenes. These creatures’ sanguineous appetites have also come in handy for scientists, who are hoping to use them to solve another mystery: the diversity of ...