mosaicscience.com

d8ZNd TIL that between 1998 and 2016 Iceland managed to reduce the number of 15 and 16 year olds who had been drunk in the last month from 42% to 5%.
4XEMJ TIL that RH null is a blood so rare, only 40 people in the world have it. It's a universal donor among many people with other rare blood types, and as such has been called the "golden blood" because its life saving capability is enormous.
5YlLp TIL sperm cells can live for up to 30 hours after a man has died. The sperm can be gathered and used for posthumous fertilization.