Asian Spectator

Men's Weekly

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Why and how does personality emerge? Studying the evolution of individuality using thousands of fruit flies

  • Written by Shraddha Lall, Ph.D. Candidate in Organismic and Evolutionary Biology, Harvard University
Why and how does personality emerge? Studying the evolution of individuality using thousands of fruit fliesEven fruit flies have personal preferences.Antagain/E+ via Getty Images

As a Ph.D. student, I wanted to understand the evolution of individual differences in fruit fly behavior – the building blocks of personality. My experiments involved measuring how my tiny subjects acted in a maze.

So each day in the lab began with using a thin paintbrush...

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