(CN) – Guiding Santa’s sleigh isn’t the only thing Rudolph and his reindeer friends are responsible for: they also play an important role in slowing down global climate change. A team of researchers ...

Reindeer, or caribou, are members of the deer family Cervidae. Deer, elk, moose, and wapiti are also members of this family. The distinction between reindeer and caribou depends on where they live.