hms.harvard.edu

DQX1r TIL that until infant pain was formally recognized in 1987, it was widely assumed that infants didn't feel pain, leading to many undergoing major surgeries without anesthesia.
nWBGb TIL that the first heartbeat in zebrafish embryos begins abruptly and in sync across all heart cells, a process likened to an army starting to march in perfect unison without prior practice.
vP0L TIL humans are actually more skilled at identifying caricatures of people than photographs of them.