“Inside your belly button are thousands of bacteria that form an ecosystem the size of an entire rainforest.”
More from Jenny Kellett
“A baby is born without kneecaps. They appear between age 2 and 6.”
“You have no sense of smell when you're sleeping.”
“Everyone has a completely unique smell (except for twins, who smell the same)”
“Right-handed people live, on average, nine years longer than left-handed people do.”