› added 4 years ago

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TIL that 90% of people (trichromats) see about 1 million colors, but the others, (tetrachromats) have a genetic mutation and therefore see an incredible 100 million colors. This happens more in women, with nearly 12% of women having this fourth color perception channel.

Read more healthline.com

via reddit.com

nen4d TIL that during the Rwandan genocide, a priest lured around 2000 Tutsis into his church under promise of protection, then ordered the church with all those inside bulldozed and shot the survivors.
LQA9Q TIL - In the 2020 Census, Over Half of White Americans Reported Being of English, German or Irish Descent
9OWr TIL a valley settlement in Norway that lives in shadow for nearly half of every year has installed giant mirrors on an adjacent mountain to redirect sunlight into the town’s square, all based on a plan that was thought up 100 years ago.
5YjQ9 TIL that sentences with the sole purpose of annoying the reader exist and are called "garden path sentences". They make you go back and read the sentence again, an example is: "The old man the boat"
0dXDN TIL that of the 5000 or so species of mammals on the planet only female humans have permanent breasts.