Bird or dinosaur? Birds are the only living animals with feathers, but did you know that some dinosaurs had feathers too? Unlike birds, these creatures had teeth and long, bony tails. They ranged in size from the feisty Microraptor, which was small enough to hold in your hand -- if you weren't afraid of its sharp teeth -- to the Beipiaosaurus, which was over seven feet long. Paleontologists learned about these creatures, which lived approximately 145 million years ago, by studying fossils.
Kathleen Weidner Zoehfeld is the award-winning author of more than sixty books for children, including DINOSAUR TRACKS, "a great choice for even the most discriminating dinophiles" (School Library Journal); DID DINOSAURS HAVE FEATHERS?, a Children's Book of the Month Club selection, described as "fascinating" by Kirkus Reviews; and DINOSAURS BIG AND SMALL, a 2003 Oppenheim Toy Portfolio Best Book Award winner.
When she's not reading, researching, writing, or editing, Kathleen loves to spend her free time exploring, doing fieldwork, and preparing fossils for her local natural history museums.



