› added 3 years ago

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TIL that, since the ovaries and fallopian tubes are not actually connected, it's normal for substances entering the uterus to spill out into the abdominal cavity at the mouths of the fallopian tubes. This includes semen, but also X-Ray contrast dye - and it's used diagnostically.

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5Yd8D TIL that horseshoe crab blood, costing $60,000 per gallon, is unique and is integral in FDA testing. This has led to a massive effort by scientists to try to conserve this invaluable resource.
VM7eD TIL that Fresh eggs have more nutrients than old ones
KObvQ TIL that an animal's brains are also an essential part to tanning hides and furs, and each animal has exactly enough brains to tan its own hide.
D1XWD TIL: The concept of "Liquid Lead", were the roles of leader and follower are changed during the dance by the couple, breaking gender roles.
E9rx TIL there is a community in southern Ohio who are thought of as black, regardless of the color of their skin. They’re actively discriminated against by the neighboring town because of this.