How a declining environment affects populations

Stable ecosystems occasionally experience events that cause widespread death—for example, bacteria in the human gut may be wiped out by antibiotics, or ocean life may be depleted by overfishing. A new study from MIT physicists ...

Death by a thousand cuts? Not for small populations

We've all heard Darwin's theory described as favoring the fittest, but new research from Michigan State University shows that, at least in small populations, it's O.K. to not be the best.

How fear alone can cause animal extinction

Researchers have discovered that the fear of predators causes flies to spend less time eating, more time being vigilant, have less sex, and produce fewer offspring. 

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