Both brown and collared lemmings are some tough rodents built to survive chilly Arctic conditions.
Brown lemmings tend to be chunkier with fluffy, reddish brown or tawny fur, though their winter coat is grayer and longer. Brown lemmings tend to prefer damp, marshy ground, whereas collared lemmings tend to avoid it. Similarly unlike brown lemmings—or true lemmings—collared lemmings aren’t actual lemmings, but rather belong to the vole family. The petite rodents are well-adapted to the High Arctic and Ungava Peninsula, where brown lemmings don’t tread, with their short tails and small ears as well as their seasonal coat: brown or gray in the summer, and white in the winter. They get their name from the collar of light brown fur that circles their neck.
FUN FACT: During the winter, collared lemmings burrow deep in the snow. However, these are no bare burrows. Rather, they have nest rooms, bathrooms, and sleeping rooms.