There is a family with a genetic condition that makes their skin blue, who have been isolated in rural Kentucky for generations.
34
Yawns are more contagious among people with closer relationships.
163
Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Your thumb is about the same size as your nose.
124
False teeth are often minutely radioactive.
214