Flying insects tell tales of long-distance migrations

Well-timed travel ensures food and breeding opportunities

hawk moth

MASS MIGRATIONS  This hawk moth (Hyles gallii) is one of millions of insects that migrate through a Swiss Alpine pass each year. Trillions of insects fly vast distances with the seasons to eat and breed. They may teach us something about how insects and other animals move around the planet. 

Will hawkes, @Hawkes_Will

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