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TIL We touch our face so much because we are unconsciously sniffing our hands to gain information about the people and environment around us.

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XBLE TIL White Chocolate isn’t actually chocolate, as it is not made with any cocoa beans. It is actually made of cocoa butter, the fat from cocoa beans.
JY181 Did you wake up today with a craving for clay, or dirt? That’s called pica, an abnormal craving for substances other than typical food. If you went ahead and acted on your impulse, it's probably a good idea to head over to your doctor’s office. Research indicates that in most cases this craving is a result of a mineral or vitamin deficiency. This brings us to this week’s Today I Learned, as National Geographic Society grantee and ornithologist Luke Powell explains why macaws regularly munch on South American rain forest clay. Yummy! All animals (including humans) need salt to live. Animals that live in the Amazon rain forest face a curious predicament due to the way the Andes mountain range affects weather coming from the Pacific Ocean. This geography results in an extreme lack of salt in the Amazon and, consequentially, some unique behaviors and appetites.EDITOR: Laurence AlexanderSERIES PRODUCER: Chris Mattle
Od7a TIL that in the old days (before 1960s or so) moviegoers would show up partway through a movie, watch it to the end, and then stay to watch the beginning, hence the phrase “This is where we came in…”
b6Do9 TIL that the shooting of Lee Harvey Oswald by Jack Ruby in 1963 was broadcast live on national television and is the first known human killing seen live on TV.
699w TIL that the Pillars of Creation in the Eagle nebula were most likely destroyed by a supernova 6,000 years ago, the blast and destruction of which we won’t see for another 1,000 years