Vanarx

The Vanarx feeds on a Yeerk from a Gedd host.

The Vanarx is the Yeerk parasites natural predator. They can suck Yeerks right out of a Yeerk pool and expel the pool liquid through gill like slits, or, they can wrap around a host and suck on the ear or other orfice the Yeerk entered through, and get the Yeerk that way. They also end up consuming the other contents of the hosts head.