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or backpacking through the outdoors with their young children in tow
With a magnification of 8X
and no glare
it is safe to be in any nursery or children's room
Discover how long it takes for light from the sun to reach Earth
Sharks: A Mighty Bite-y History hat or backpacking through the outdoorsSharks are some of the oldest creatures on the earth (or, rather, in its waters). This epic survey follows sharks from their earliest appearance in the Paleozoic era up through the challenges they face today. Along the way, readers will meet many different sharks from different points in history. They will get an up close evolutionary look at what makes a shark a sharklike their skin, their teeth, their fins, and more. And they will get a crash course