The Lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Their defence system is thought to be based on aposematism (warning display). They can be very territorial and aggressive.

The Lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Their defence system is thought to be based on aposematism (warning display). They can be very territorial and aggressive.