The grazerbeasts chew up most vegetation and flatten the valley floor. They stomp out wilderness before it takes over, keeping the land livable for humans.
The grazerbeasts average fifty to sixty stories high. They can have any number of legs. Spikes grow out of their bellies. The popular tale is they come from the miscarriage of a dragon. They are so huge that some people live out their entire lives from birth to death on grazerbeast backs. The grazers more or less ignore people.