unbfacts: Canadian researchers found gut bacteria enzymes can convert blood types A, B, and AB to universal donor O by removing certain sugars. Source

unbfacts: The appendix does have a purpose. It stores samples of good bacteria so they can repopulate your digestive system in case they are wiped out entirely by diseases such as diarrhea. Source

unbfacts: In 2017, two students in Scotland entered an art gallery and found an empty table on which they placed a pineapple to see if people would take it for art. When they returned four days later, the pineapple was covered with a glass protection structure. Source

unbfacts: Although it’s hard to believe, 73% of Japan is made up of mountains and rugged terrains forcing 93% of the population to live in the cities. This is the reason for the high population density in its cities. Source

unbfacts: The saying that a rainbow contains seven colors: red, orange, yellow, green, blue, indigo and violet” is a myth. These are actually just the colors of the visible spectrum. Rainbows contain upward of one million colors. They’re just invisible to the human eye. Source