Why are some people left-handed? - Daniel M. Abrams

TED-Ed · 11.3M views · 2015 · 5:07

Open on YouTube

Evolution & geneticsother

Why the open web links it

Explores the evolutionary and social factors behind left-handedness and its persistence in human populations.

Linked by 14 independent sites, 3 of them widely read in the 2026-10 crawl of the open web, including ted.com, uci.edu, themarginalian.org, vegasaces.com, nebula.org.