Mermithid Nematode
There are a lot of parasites that cause strange changes in their hosts. Parasites turn hosts into zombiesgorge on the flesh of the host from the inside out, even assist a host's suicide. But one of the most interesting and extreme changes caused by a parasite is achieved by the mermithid nematode. Simply put: it makes dude mayflies look like ladies.
You see, like many other nematodes, the adults of the species are free living. But their young enjoy all the comforts of living off the hard work of other species, specifically the mayfly. Mayflies are known for their peculiar life cycle - they…