› added 3 months ago

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TIL that 50% of the dopamine in your brain is synthesized by bacteria in your gut.

Read more pmc.ncbi.nlm.nih.gov

via reddit.com

4kYw TIL China has a law that requires cosmetics to be tested on animals. Therefore, many companies have started testing again in order to sell their products in China.
6ENYl TIL that Russian cosmonauts used to carry a gun into space, in case they missed their landing spot and got stranded in the Siberian wilderness.
p6vp TIL that researchers on a sub-Antarctic island observed fur seals chasing and raping penguins. The researchers speculated the fur seals could be practicing their sexual skills or releasing sexual frustration. In one instance, a seal finished the sexual encounter by killing and eating the penguin.
W7p7B TIL Sweet Adelines International is a worldwide organization for women barbershop harmony singers
6EWNQ TIL that actor Sir Anthony Hopkins was diagnosed with Asperger syndrome only 10 years ago.