Psychologists at Yale University found that young children didn't like to pick natural things, like plants, when given an option with plastic or metal objects, News.com.au reported.
According to researchers Dr Annie Wertz and Dr Karen Wynn, this behaviour was programmed into children from birth to avoid them being harmed or poisoned by flowers or plants.
The researchers said that throughout human evolution, plants have been essential to human existence. Yet, for all of these benefits, plants have always posed very real dangers.
--ANI (Posted on 17-11-2013)