Chris Thonis, writing to Boing Boing on behalf of explore.org, sends along this video of a mother polar bear in Churchill, Manitoba nursing her two cubs. Chris explains:
This is a behavior rarely caught on camera, and is the result of three live cams set up by explore.org, Polar Bears International, Parks Canada, and Frontiers North Adventure to capture the annual polar bear migration this year (the point being to get people to think more about how climate change is impacting the north, and inspire an annual event similar to Earth Day (or Groundhog Day).