Paleontologists at the Canadian Museum of Nature have recently been studying the skeletal remains of a rhinoceros. This might not sound remarkable at first, but what makes these remains fascinating is that they were found on Devon Island in the Canadian Arctic.
Today, mammals inhabit nearly every corner of the Earth. In Asia, Europe and North America, mammals arrived via three routes, one over the Bering Strait and two over the North Atlantic.
The Bering Land Bridge is the best known, having enabled the arrival of humans in North America approximately 20,000 years ago and shaped the population genetics of animals such as bears, lions and horses.
