designed for constant gnawing, and the powerful limbs of a kangaroo built for incredible leaps. These visual guides take us from the dens of polar bears in the frozen Arctic to the lush canopies of rainforests where primates swing through the trees.

Through the lens of an Eyewitness book, we can explore the intricate details of mammal life. High-definition photography reveals the complex structure of a spots, the specialized teeth of a

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