Model organisms, brought into labs because they are easy to work with, adapt to the lab, often shedding characteristics that allowed them to survive in the wild. Scientists who work with model organisms rarely look at the wild strains, but when they do, t
Scientists at Washington University are undertaking an ambitious project to engineer tiny nitrogen-fixing devices within photosynthetic cells. Related story: http://www.science20.com/news_articles/four_teams_collaborate_engineer_crops_future-119019
In the late 1980s, Marla Sokolowski noticed that if she placed fly larvae on a pile of yeast in a petri dish, some would sit and eat the yeast which they sat upon, while others would move, creating wild trails through the yeast as they ate.