Multiple choice general knowledge Babies are born with ---- bones, but by adulthood we have only ---- in our bodies. 200,206 300,206 206,300 206,206 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Babies are born with approximately 300 bones, which fuse together during growth to form the 206 bones in an adult human skeleton. This reduction occurs because many bones (like those in the skull and spine) fuse together as the body develops.