Researchers have often wondered what leads to left-handedness, an enduring question through human history, with sinister implications. Latest findings in biology might explain some links. ThePrint #̦PureScience, Sandhya Ramesh explains. Subscribe to the Pure Science Telegram Channel https://t.me/PureScienceWithSandhyaRamesh Apply to ThePrint School of Journalism now: https://school.theprint.in/