Today

x6gab TIL of Lyodura, a brain surgery material that, unknown to the buyers, was tissue harvested by the seller from black market human corpses and carried fatal incurable prion disease. Over 150 people were infected before its ban in 1996
4klLR TIL Birds of the same species can have regional accents. These accents, which go unnoticed by humans, are biologically significant for birds as they use songs for mating, territory defense, and communication. Avian accents may develop like the human game of “Telephone.”