Did you know that rhino calves can weigh up to 100 pounds?! Nature's Children series provides young readers (Ages 8-10) with fascinating information about the planet's most incredible wildlife species. Each title offers a complete picture of the animal- from birth to adulthood- and describes its place in our world, including how humans impact it and its environment. Did you know that rhinos communicate by squealing, snorting, and even mooing. These huge herbivores are also at risk due to illegal hunting.