The Martians live on the harsh planet of Mars where temperatures are below 0 degrees Celsius. They have thick fur, claws, large canine teeth, and plant grinding teeth to help them survive in the cold and hunt for food. Their height ranges from 1.5 to 3.5 meters. The Martians' diet consists of the nutritious bark from a special tree that can grow on Mars, though they are also seen hunting other alien beasts without eating them, possibly as offerings to their god.