At the beginning, there was – moss. About  450 million years ago, first algae adapted to life on earth and mosses evolved.

Most animals don’t eat moss. It’s hard to digest, and it has little nutritional value. So why are reindeer different? The moss contains a special chemical that helps reindeer keep their blood warm. It keeps them warm during their yearly journey across the Arctic region, much like antifreeze keeps a car from freezing up in winter.