Broad bodied chasers

Dragonflies were among the first winged insects to evolve, around 300 million years ago, long before there were dinosaurs. Back then oxygen levels in our atmosphere were much higher than they are now, and dragonflies evolved into giants with wingspans like eagles. Now, the emperor dragonfly, the largest of Britain’s 36 dragonfly species, has a wingspan of a mere 11cm.

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