chemicals

At Last, We Understand What Turns Fruit Flies On

At Last, We Understand What Turns Fruit Flies On

We’ve been breeding the fly Drosophila melanogaster in the lab for decades. We’ve tinkered with their genes — giving them extra legs, curly wings, or odd coloured eyes — in pursuit of understanding genetic inheritance and how tissues develop. But until now we didn’t know which chemical made them start…