'Super males' emerge from male-dominated populations, study finds

Males who evolve in male-dominated populations become far better at securing females than those who grow up in monogamous populations, according to new research into the behaviour of fruit flies at the University of Sheffield.

Fruit fly sperm makes females do housework after sex

The sperm of male fruit flies are coated with a chemical 'sex peptide' which inhibits the female's usual afternoon siesta and compels her into an intense period of foraging activity.

Learned helplessness in flies and the roots of depression

When faced with impossible circumstances beyond their control, animals, including humans, often hunker down as they develop sleep or eating disorders, ulcers, and other physical manifestations of depression. Now, researchers ...

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