After the Fact: When Weather Changes, Grasshopper Turns Locust

[unable to retrieve full-text content]In times of scarcity the insects crowd together, with the interaction setting off a hormonal change and the resulting swarm behavior.

Source: http://www.nytimes.com/2013/04/09/science/when-weather-changes-grasshopper-turns-locust.html?partner=rss&emc=rss

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