Modern dragonflies have wingspans of between 2 to 5 inches (5 cm to 12 cm). Fossils of dragonfly ancestors show that they had wingspans of up to 2 feet. The example above is 68 cm/26 inches.
Modern scientists placed dragonfly larvae in chambers which mimic the the Earth’s oxygen levels from 300 million years ago, and were able to grow super-sized dragonflies that are 15% larger than normal.
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