While they’re not pretty, cockroaches are cute and will group together to stay alive in dry air.

On a dry day in Madagascar, hissing cockroaches do something unexpectedly sweet: They huddle together in groups of slow-moving cockroaches. A new study in Ethology shows that these groups are not random social moments: they are a survival strategy caused by humidity that helps prevent large insects from drying out. “The main conclusion of our…

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