A closer look
Nothing says 'medical breakthrough' quite like staring at diapers full of jet-black pee. In 1902, Archibald Garrod noticed babies with alkaptonuria had urine that turned dark upon hitting the air. Instead of panicking, he brilliantly realized this wasn't an infection, but a missing enzyme caused by a recessive genetic trait. Garrod essentially founded biochemical genetics by proving that our DNA dictates our body's chemical assembly line, all thanks to some goth baby urine.






