Polar Bearsby Linda Tagliaferro, John F. McGee
Two new additions to the popular Our Wild World series cover a pair of nature's most fascinating arctic animals. There are 33 species of seals, including sea lions and walruses, and they live all over the world. Because seals can store oxygen in their muscles, they can dive deep and stay underwater for an average of 20 minutes at a time. One seal was recorded
Two new additions to the popular Our Wild World series cover a pair of nature's most fascinating arctic animals. There are 33 species of seals, including sea lions and walruses, and they live all over the world. Because seals can store oxygen in their muscles, they can dive deep and stay underwater for an average of 20 minutes at a time. One seal was recorded diving underwater for two hours and reached a depth of 5,500 feet! Polar Bears are the largest members of the bear family. Males can stand up to 10 feet tall, and can weigh more than 1,000 pounds. Despite their massive size, polar bears are also very good swimmers and can swim at a speed of 6 miles per hour, and can dive as deep as 15 feet.Seals and Polar Bears deliver an in-depth look at these amazing animals, while remaining accessible to children. Perfect for older kids seeking information for report writing, and as an introduction to wildlife for new readers.
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Polar Bears is a well-researched and child-friendly introduction to these fascinating animals that scientists believe may have evolved from the brown bear. Male polar bears can reach ten feet in height when standing on their hind legs and a thousand pounds in weight. Females are smaller than males, but still can reach over six feet in height and five hundred pounds in weight. In spite of their huge size, they are graceful swimmers and feared predators in the Arctic regions of the world. Females give birth to cubs every three years. Similar to other bears, the female polar bear digs a den into the snow where she gives birth and cares for her young. The polar bear¿s body is well-adapted for living in the frigid temperatures of the Arctic. They have a layer of blubber or fat that helps to insulate them from the cold. They also have two layers of hair: the lower layer which is thick and oily, and the top layer which is long and hollow. The hollow hairs act as an insulator by trapping air within the hairs. Although the polar bear has white hair, its skin is black to absorb heat and light. This book is filled with interesting facts about polar bears, but it is written in a way that is accessible to the younger readers. The author uses comparisons that are familiar to children to help them to understand the facts. For example, she states that when the male polar bear stands on its hind legs, it is taller than a school bus. She also includes ¿Fun Facts¿ throughout the book to call the reader¿s attention to additional facts about the bears. She also includes a page of safe Internet sites where readers can find more information.