Octopuses have zero bones

"Do you wonder...how many times a black bear's heart beats each hour?. . . What happens when you keep placing zeros at the ends of numbers? The answers are all in this book--along with many more . . . facts that involve the numbers zero to nine and power of ten numbers ten to nine billion. Be prepared to count and get curious as you fall in love with numbers and with the world around us"--Back cover.