Is Bigfoot (aka Sasquatch) a descendent of the extinct giant ape Gigantopithecus? Or is it a myth turned pop-culture phenom that we want to believe is real? In this objectively written graded reader, author Bonnie Worth examines the evidence for and against the existence...

The Cat in the Hat visits with Ice Age mammals on a whirlwind tour of the Pleistocene! From ground sloths as big as elephants to bears as heavy as Volkswagens, the Cat introduces young readers to mastodons, mammoths, woolly rhinos, saber-toothed cats, giant horses,...