Each of these worms is similar to a tapeworm, as it has a scolex with suckers and hooks, but its anatomy is also highly unusual. Inside a host, the worm will, if possible, make its way deep inside its host's brain and attach itself to their hypothalamus gland, from where the worm feeds on acetylcholine released from the gland, stopping the host's ability to control their own violent behavior. Surface symptoms on the host's body begin to show within a few minutes of infection and, within a few hours, the worm will have seemingly obtained total control of its host. The worm will only kill its host if it is removed from the host organism, by releasing a poison into the host's body.