Water Rats are neither aquatic nor rats but a species of subcutaneous  parasitic centipede that is the mascot for the Water Rats 1% motor cycle club. They give their host a gaunt, sallow appearance while increasing adrenaline and endorphins and suppressing empathic responses, making the host incredibly strong and sociopathic.  They thrive on a diet heavy in sugar, alcohol, and pharmaceuticals. They can grow to a length of three feet and create ridges underneath the skin that the Water Rats MC members decorate with piercings and tattoos.