› added 2 years ago

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TIL that race can be identified genetically with almost 100% accuracy, despite people claimijg it doesn't exist

Read more ncbi.nlm.nih.gov

via reddit.com

N7bxP TIL "dolphins in the ocean" can swim "more than 50 miles an hour" with "little power input." "Research . . . appears to show that the dolphins do this by twitching their skin in such a way as to discourage the formation of turbulent vortices and turbulence which leads to drag and power dissipation."
Z86lG TIL there is a blood sport known as Spider Fighting, where two spiders are placed on opposite ends of a stick and pushed towards the middle to fight one another. In 2002, inmates in a Florida prison got into a fight resulting in life threatening injuries over the theft of a pet fighting spider.
yVZ8v TIL that sharks do not produce sounds. Out of the 400-500 species, no organ capable of producing sound has ever been found.
gMnMy TIL that red is not the only color of blood in the animal kingdom. Several species of octopus have blue blood, ocellated icefish have clear blood, and the green-blooded skink has, well, green blood.
8GRG TIL Credit Card companies refer to people who pay their cards in full monthly as “deadbeats”