An irresistible scent makes locusts swarm, study finds – Yahoo News Australia

The coronavirus isn’t the only plague making headlines this year — locusts are devastating crops in several parts of the world, and now scientists are discovering why the pest forms destructive swarms.
On its own, a locust is fairly harmless. But so-called solitary locusts can undergo a metamorphosis, changing colour and joining together with millions of others in catastrophic clouds that strip fields.
So what prompts locusts to transform from solitary to “gregarious”?
A study published Wedn…

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