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 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 ...

They have five pairs of eyes and a sucker containing three jaws and about 100 teeth. The leeches feed on fish and frogs and can also attach themselves to deer, sheep and cattle when they enter ...