Contains facts about polar bears and grizzly bears, comparing such aspects as their sizes, brain structure, and abilities.

"A basic exploration of the appearance, behavior, and habitat of polar bears, Earth's biggest land predators. Also included is a story from folklore explaining why polar bears have short tails"--Provided by publisher.

"Even though Arendelle is a cold, snowy place, polar bears have always been a very rare sight--until now. A family of polar bears has been spotted on the outskirts of town, and it has started to cause all kinds of mischief. Olaf loves the bears, but Elsa and Anna need to figure out why they have suddenly appeared--and how to lure them back to their Arctic home!"--Back cover.

The icy cold Arctic is home to both the powerful polar bear and intelligent orca, two mighty predators. But which animal is the fiercest of the ecosystem?

Shares stories and facts that reveal the real-life survival challenges that have caused polar bears to become endangered, and provides information about what kids can do to support conservation efforts. --