Wolves' Return to Washington

Today, I read this interesting article about wolves in North America. The main story is about a group of wolves who wandered south from British Columbia, Canada, recolonising Washington State in the USA. This was the first time in seventy years that wolves settled in my Mum's home state in America. No human reintroduced them there, they did this themselves. The article will also tell you a lot about how wolves live and how they communicate with each other. We are a well developed species.