Alaska wildlife officials push to continue its aerial predator-control program despite a court ruling that says the program ...

Once one of the state's largest caribou herds, the low population of Southwest Alaska's Mulchatna herd has failed to recover. Researchers are working to understand why.

It is unknown why caribou can see Ultraviolet light. But some preliminary experiments show that Lichen, a low growing plant-like organism, and the main food source for caribou during winter ...

Once one of the states largest caribou herds, southwestern Alaska's Mulchatna caribou herds' low population has failed to recover. Researchers are examining disease and nutrition to understand why.

FEEDING: Although caribou eat a wide variety of foods, winter foraging is limited almost exclusively to ground and arboreal lichens. Caribou in the Selkirk population eat lichens for up to six months ...

Human-caused changes to weather patterns have also forced a redistribution of caribou based on where they can continue to access sufficient snow and lichen, the researchers write. The toll taken on ...

These female caribou — part of North America's largest ... trudging through the snow using their scoop-shaped hooves to dig for lichen clinging to rocks and shrubs buried beneath the snow.

caribou still prefer to graze on lichen. They only eat the top centimetre or two, which forces the lichen to grow back to be eaten at another time; a kind of lichen farming! The videos also showed ...