Human children don’t get kneecap bones until they’re around three years old.

hasan.test

17, June, 19

INSPIRATION & LEARNING, STARTLING FACTS

As Torech noted on Reddit, it takes a while for children to get kneecaps. That part of the skeleton is called the patella. It starts out as cartilage and then ossifies into the bone at around toddler age. 

Source: https://www.insider.com/true-facts-that-sound-fake-2017-8#human-children-dont-get-kneecap-bones-until-theyre-around-three-years-old-6