Paraskavedekatriaphobia: Why is Friday the 13th Considered Unlucky?
The Long, Unusual History of Pickles.
Happy Feast of the Ass.
How the World's Smallest Birds Survive the Winter.
ICYMI, last Friday's links are here, and include the history of the sneeze guard, how big a tsunami can really get, how to build an igloo, and advice from 1595 on how to slim down in 14 days.