FRIDAY, NOVEMBER 9, 2012


Winter is Coming

Tundra’s coat is getting thicker & more luxurious. This is the main way a wolf stays warm in the winter.  It starts growing in late August as the sun gets lower in the sky it triggers a hormone to start producing the winter coat. Wolves live in very harsh environments with temperatures getting as low as -50C in BC but even colder in the Arctic where it can reach -65C. So the thick coat is the main defence against this bone chilling cold but what about the nose & paws? They do not have fur.

Wolves have adapted a counter-circulatory circulation system where the warm blood goes to the paws first to keep them warm. Along with the nose & ears. Humans do not possess this system so the blood gets to our fingers & toes last, therefore we are cold in our extremities. This circulation system is one of the many ways in which canis lupus can adequately cope with its harsh environment.