scienceiq.com

1ankX TIL that owls have a reputation of being wise due to their large eyes, but are not smart enough to be trained - unlike parrots, hawks, and pigeons. They still have a complex brain, but it spends much of its time processing information from its optic nerves.
KOgbB TIL: Tears contain a natural pain killer. This could explain why we feel better after crying.
4yPb TIL scientist feared the first atomic test would initiate an unstoppable chain reaction and ultimately lead to the destruction of earth