Tooth by Tooth

Comparing Fangs, Tusks, and Chompers

From the Series Animal by Animal

  • Interest Level: Kindergarten - Grade 4
  • Reading Level: Grade 3

Open wide! Compare your teeth to those of other animals and find out why teeth come in so many different shapes and sizes.

What animal would you be if a few of your teeth grew so long that they stuck out of your mouth even when it was closed? What would you be if your top canine teeth grew almost all the way down to your feet? This picture book will keep you guessing as you read about how human teeth are like—and unlike—those of other animals.

Praise for Bone by Bone: Comparing Animal Skeletons

“Children will enjoy the humorous illustrations and labeled diagrams as they predict the morphing of a human skeleton, Dr. Moreau-style, into that of various animals.”—Booklist

“[Levine’s] ‘what if’ questions are right on target for young learners, connecting them to the subject and extending their imaginations.”—Kirkus Reviews

“[I]nteractive and thought-provoking.”—School Library Journal

Format Your Price Add
Interest Level Kindergarten - Grade 4
Reading Level Grade 3
Genre Picture Books, Science
Category 5 Kinds of Nonfiction, 5KN: Expository Literature, Animals
Copyright 2016
Publisher Lerner Publishing Group
Imprint Millbrook Press ™
Language English
Number of Pages 32
Publication Date 2016-01-01
Reading Counts! Level 5.4
Text Type Informational/Explanatory
BISACS JNF051030, JNF051150, JNF013110
Dewey 599.9'43
Graphics Full-color illustrations
Dimensions 9.25 x 11
Lexile 820
Guided Reading Level O
ATOS Reading Level 4.6
Accelerated Reader® Quiz 181185
Accelerated Reader® Points 0.5
Features Awards, Bibliography/further reading, Glossary, Original artwork, Reviewed, and Teaching Guides

Author: Sara Levine

Sara Levine is an author, educator, and veterinarian. Her science books for children include the Animal by Animal series, Germs Up Close, and A Peek at Beaks: Tools Birds Use. 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.

Illustrator: T.S Spookytooth

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.

Lerner eSource™ offers free digital teaching and learning resources, including Common Core State Standards (CCSS) teaching guides. These guides, created by classroom teachers, offer short lessons and writing exercises that give students specific instruction and practice using Common Core skills and strategies. Lerner eSource also provides additional resources including online activities, downloadable/printable graphic organizers, and additional educational materials that would also support Common Core instruction. Download, share, pin, print, and save as many of these free resources as you like!

Animal by Animal

How are you similar to animals? How are you different? These entertaining picture books from educator and veterinarian Sara Levine and illustrator T.S Spookytooth explore comparative anatomy and give readers the chance to find out how their skeletons, teeth, and eyes match up with a wide View available downloads →


  • Monarch Award Master List, Nominated, 2019
  • Flicker Tale Children's Book Award, Winner, 2018
  • Children's Book Committee at Bank Street College Best Children's Book of the Year, Winner, 2017
  • Texas Topaz Nonfiction Reading List, Winner, 2017
  • AAAS/Subaru SB&F Prize for Excellence in Science Books, Winner, 2016



“A guessing game meets zoological dentistry in this informational picture book. . . . With playful text and a kid-friendly approach, this title . . . will surely elicit some giggles. A great addition to any library where animal books are popular—so, almost all of them.”—Booklist

School Library Journal

“Playful and laugh-out-loud funny, this informative picture book belongs in every dentist office and library.”—School Library Journal

Kirkus Reviews

“As they did in Bone by Bone: Comparing Animal Skeletons, Levine and Spookytooth successfully combine science fact, interactive fun, and giggle-inducing pictures.”—Kirkus Reviews