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Want to Avoid Predators? Head to the Poles


Want to Avoid Predators? Head to the Poles

The likelihood that a caterpillar will fall prey to another animal increases substantially the closer the caterpillar is to the equator, as well as at lower elevations, according to a new study in the May 19 issue of Science. In an experiment that deployed 2,879 artificial caterpillars across a span of latitudes, the researchers found that for every 1° of latitude away from the equator, the daily odds of a caterpillar being attacked decreased by 2.7%. Predation rates also decreased with increasing elevation, where every additional 100 meters of elevation decreased the odds of predation by 6.6%.


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