>>22877401
all leeches can jump
aside from their bloodsucking parts their body is just one big muscle, like a snake
most just haven't evolved a behavioral instinct to jump, they generally survive long enough to reproduce by sneakily sucking up a belly full of blood and jumping off before their victim feels it (due to their anaesthetizing saliva)
jumping leeches have had a mutaton that makes them into pack hunters instead of blood thieves, they will actually kill prey for the whole pack to drink dry