science.org

16kXd TIL Sub-Saharan Africans trace up to 19% of their genetic ancestry to an extinct hominin species that is NOT found in the DNA of present-day Asians or Caucasians.
9wLWG TIL Between 1873 and 1880, the idea of transfusing milk into the body as a substitute for blood, in cases of emergency bleeding was tested across the United States. The results (some successful) were published in medical journals but eventually the practice was seen as too risky and was stopped.
grK88 TIL in terms of endurance, there is no living animal that can beat a human; basic human biology makes humans the ultimate runners