Depending on the season, Mercedes will chomp her way through up to 10 kilograms of meat a day, as well as a sprinkling of carnivore powder and liver oil. But even food isn't making her happy.

Robert Rankin, Carnivore Keeper, said, "She doesn't seem to be interested today, and that happens, it's kind of seasonal at this time of the year, it happens more and she's not playing ball today. "

Those warmer conditions are a reality for polar bears around the world.

Recently, a photo captured a mother polar bear and her pup resting on a small piece of ice. Their home, literally melting under their feet.

The global polar bear population is estimated to be between 20-thousand and 25-thousand. Conservationists predict that as the Arctic continues to warm with climate change, two-thirds could disappear by 2030.