Lemming

Lemming
	Norway lemming (Lemmus lemmus)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Cricetidae
Subfamily:	Arvicolinae
Groups included
	Dicrostonychini – collared lemmings; Lagurini – steppe lemmings; Lemmini – true lemmings;
Cladistically included but traditionally excluded taxa
	Arvicolini ; Ellobiusini – mole voles; Myodini ; Ondatrini – muskrats; Phenacomyini – tree and heather voles; Pliomyini ; Prometheomyini ;

A lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Lemmings form the subfamily Arvicolinae (also known as Microtinae) together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters, and gerbils. In popular culture, a longstanding myth holds that they exhibit herd mentality and jump off cliffs, committing mass suicide.

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