Laragh Kemper wrote -
Add together the areas of Alaska, Texas, and Washington state—and you’ll see how much summer ice is already gone. It’s polar bears’ greatest threat.
Nose-to-nose greetings are the way that a bear asks another bear for something, such as food. The guest bear will approach slowly, circle around a carcass, and then meekly touch the other bear’s nose. Bears who use proper manners are often allowed to share a kill.