Doctors took a look inside his nose and saw signs of blood. When they broke out the nasal endoscope, they saw the source of ...

You might think you know leeches: Go for a swim in the wrong shallow lake, and you’ll emerge covered in sleek black bloodsuckers that have decided you’re their next meal. But inside a leech, ...

It's the beginning of the spooky season, which means ghouls, ghosts, and bloodsuckers abound. One of the most famous bloodsuckers in nature is, of course, the leech. These parasites feed on blood and ...

Leeches are blood-feeding organisms that have a suite of anticoagulant compounds they secrete from their salivary glands that prevent blood clotting. This allows them to maximize feeding time and ...

A new video shows what appears to be the first evidence of jumping land-dwelling leeches in Madagascar, Africa. It was taken in 2017 by Mai Fahmy, who posted about the findings on Instagram on ...

A 430-million-year-old fossil has rewritten leech history, showing they are at least 200 million years older than previously believed. Unlike today’s bloodsucking leeches, their ancient ancestors ...