Summertime Sleepers

All science classrooms discuss animals that hibernate during winter months, but few know about animals that estivate-a prolonged sleep during hot or dry periods. Learn about the reasons estivating animals become dormant-whether it's because warm weather threatens food supply or to avoid increased body temperatures. From the ladybug to the salamander, from the lungfish to the desert hedgehog, twelve estivating animals and their habits-both when sleeping and awake-are explained clearly and elegantly.

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