An extensive, decades-long analysis tracking endangered caribou populations has revealed that migration patterns are eroding.

The study shows caribou herds changed their migratory duration, distance or elevation over 35 years of radio tag tracking.

With heavily muscled bodies, skinny legs, and strong hooves that balloon to the size of dinner plates come winter, mountain caribou — the "mountain ecotype" of the woodland caribou — are well adapted ...

SANDPOINT, Idaho— Conservation groups filed a lawsuit today challenging the U.S. Fish and Wildlife Service’s failure to finalize endangered species protection and designate critical habitat for ...

The study in Global Change Biology shows caribou herds changed their migratory duration, distance or elevation over 35 years ...