Fossil by Fossil: Comparing Dinosaur Bones

(Author) (Illustrator)

Product Details

Millbrook Press (Tm)
Publish Date
9.4 X 11.1 X 0.5 inches | 0.95 pounds
Library Binding

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About the Author

Sara Levine is an author, educator and veterinarian. Her science books for children include Bone by Bone: Comparing Animal Skeletons; Tooth by Tooth: Comparing Fangs, Tusks, and Chompers; Fossil by Fossil: Comparing Dinosaur Bones; Flower Talk: How Plants Use Color to Communicate, and Eye by Eye: Comparing Animal Peepers (2020). Her books have received a number of awards including AAAS/Subaru SB&F Prize, Utah Beehive Book Award, Cook Prize finalist, Monarch Award master list, and Bank Street College Best Children's Book of the Year.
T.S Spookytooth has been illustrating for many years. Throughout these years of brandishing a paintbrush, he has explored the diverse fields of children's picture books; magazine and newspaper illustrations; and advertising, packaging, and illustrating for websites.

When not working on illustration commissions, he likes to find time to work on many of his own personal projects. He keeps these projects locked in a suitcase but sometimes he forgets where he left the key. An ideal day for Mr. Spookytooth is to ponder and then to draw these ponderings. Some food is fitted in along the way followed by more ponderings and the occasional readjustment of his bow tie, but ponderings are the main order of the day.

He also lives in a house with Mrs. Spookytooth and thankfully she is fond of a ponder as well . . . and is good at finding lost keys.


"In this companion to Bone by Bone (2013) and Tooth by Tooth (2016), young children from diverse cultures walk through a museum and notice how dinosaurs had some of the same bones (now fossils) as humans do today. The real fun, however, comes from the dinosaurs' extra bones. With some of these extra bones attached to them, the children imagine, for instance, 'What if you had a bony ridge that rose up from the back of your skull and three horns poking up from the front?' Turning the page reveals they'd be a triceratops. Digitally enhanced acrylic artwork shows the full skeleton, while a brief description provides basic facts about the dinosaur. The long-necked, long-tailed diplodocus adds a dash of drama, requiring dual gatefolds to contain its length. In addition to the land-dwelling dinosaurs, flying and dolphin-like dinos are included. The book concludes with birds and a short discussion of this type of living dinosaur. A plethora of back matter, including dinosaur groups and a pronunciation guide, completes this engaging dino collection."--Booklist


"A comparison of select human and dinosaur bones connects readers with some of our more ancient predecessors. Continuing the approach of Bone by Bone (2013) and Tooth by Tooth (2016), Levine points up parallels between fossilized skulls, ribs, toes, and other skeletal features and those of modern readers as well as prehistoric frills, horns, and the like that we don't happen to sport. Some of this she presents as easy posers: what sort of dino would you be if you both had a long neck and 'your vertebrae didn't stop at your rear end but kept going and going and going?' Diplodocus, perhaps, or, she properly notes on the ensuing double gatefold, another type of sauropod. What if you had two finger bones per hand rather than five? T. Rex! If your pinky bone grew tremendously long? A pterosaur! Just for fun, in the simple but anatomically careful illustrations, Spookytooth temporarily alters members of a cast of, mostly, brown-skinned young museumgoers (two wearing hijabs) to reflect the exaggerated lengths, sizes, or other adaptations certain bones underwent in dinosaurs and several other types of extinct reptiles. Generous lists of websites and other information sources follow a revelation (that won't come as a surprise to confirmed dino fans) that birds are dinosaurs too. Another 'humerus' study in comparative anatomy."--Kirkus Reviews