The North Pole is home to few mammals—it is far too cold for most to survive. Luckily, polar bears have a thick layer of fat and a heavy fur to keep them warm in this climate. In this unforgiving world, the bears dig dens in the snow to survive each winter. Inside, where they stay until spring, the mother bear's cubs are born. When the weather has warmed up enough for the bears to come outside, the mother takes her cubs along as she hunts for food. Readers will see how the cubs learn to wait by holes in the ice for seals to pop up, or swim through the icy water to find their prey—and eventually learn to live and hunt on their own. Combining colorful photos and clear, simple text, this coming-of-age introduction to polar bear cubs is sure to delight emergent readers.