: The crash is often driven by a combination of over-foraging (depleting their own food supply), intense predation, and weather conditions that affect snow quality. Reproduction

: For winter digging, they grow specialized flattened claws on their front feet and have stiff bristles on their soles to aid in burrowing through snow. Habitat and Ecology

: They average about 150 mm (5.9 inches) in length and weigh between 45 and 130 grams. Males are typically 5–10% larger than females.

Brown Lemmi~g Page

: The crash is often driven by a combination of over-foraging (depleting their own food supply), intense predation, and weather conditions that affect snow quality. Reproduction

: For winter digging, they grow specialized flattened claws on their front feet and have stiff bristles on their soles to aid in burrowing through snow. Habitat and Ecology

: They average about 150 mm (5.9 inches) in length and weigh between 45 and 130 grams. Males are typically 5–10% larger than females.