- Caribou can dig food from under snow up to 120 cm deep, but at 70 cm depth they already lose too much energy and lose weight.
- The caribou feeds on lichens for much of the year, which helps it live in harsh conditions where other ungulates cannot survive.
- Caribou drink snow and sea water to quench their thirst for nine months of the year. They eat snow mixed with urine and drink seawater.
Caribou is a species that feeds mainly on lichens, which it finds under the snow using its hooves, and in summer – grass, leaves of shrubs, moss and mushrooms; males nibble grass, using a strategy of searching for and obtaining food, grazing. The daily food requirement of the species ranges from 3 kg to 9 kg, and offspring feed on milk. Wolverines, bears, and wolves hunt caribou.