“Fears were learned, but they were also inherited. Natural Selection. Run from the lion. Jump away from the tiny, poisonous insects. They exist for a reason--we survive because of them.” — Megan Miranda Copy Share Image
Identical twins are ideal lab specimens for studying the difference between learned and inherited traits since they come from the womb preloaded with matching genetic operating systems. Any meaningful differences in their behaviors or personalities are thus likely to have… — Jeffrey Kluger Copy Share Image
