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When the platypus was first discovered by Europeans in the 1800s, it was well-known by Australian Aborigines - but no one knew how to classify it. It lived in the water and laid eggs like a reptile, had a bill like a bird, and was furry and warm-blooded like a mammal. Scientists had to come up with a way to solve this and many other mysteries of nature. Alaskan Polar bears sleeping in hidden underground dens caused problems for researchers wanting to drill for oil without disturbing the bears. Find out how scientists used infrared imaging to see the caves beneath the snow.

Are wolves mean? Does anything scare a wolf? Are wolves really big and bad? Come along with Cocoa the gray wolf to discover the answers to these questions (and more) and meet America's wolves! Perfect for classrooms!

Little Whale's mother must keep her playful, curious youngster out of the harmful paths of big ships, and teach her the wondrous ways of the humpback whale. Appropriate for ages: 3-9.

This audiobook describes to a young listener how a fawn grows up to be one of the best known and most beloved wild animals in North America.

This is the story of the first six months in the life of a baby bottle-nosed dolphin. You will see what dolphins eat, and how they protect themselves from sharks, killer whales, and other enemies. Learn about these intelligent mammals who live under the waves.