And, fun facts for kids can feed their curiosities ... The only mammal that cannot jump is an elephant. Human teeth are as tough as a shark’s teeth. Babies have a greater number of bones ...

Read these 11 fun facts and you’ll know ... and the position of the cell body and the length and numbers of the axons and dendrites can vary. The human nervous system is defined as two parts.

Test your smarts against this one-minute video, where Ask Smithsonian host Eric Schulze uncovers the facts behind five popular myths about the human body. Sections Subscribe Give a Gift Renew Shop ...