Leeches are a group of segmented worms primarily found in freshwater habitats, although a few species live in the oceans and on land. Despite their reputation, many don’t feed on blood, instead eating ...

The process seemed to help the leech build up energy. The video provided evidence that terrestrial parasites, including the ...

The leech multiplies its body mass by six or seven times and will now not need to feed for several months. The surgeon describes how leeches are used to release excess blood from parts of human ...