Measure your ear, your foot and your height. Submit your measurements online and discover how they compare to other animals, including an armadillo, jackrabbit, tiger, gorilla, grizzly bear and giraffe. Where are you in the size lineup?
Related Activites from How To Smile
Try out the related activities listed below from 24/7 Science and other sources. Be sure to visit Howtosmile.org to find even more science and math activities on the web!