Giant dragonflies once roamed earth’s skies. New research upends the textbook theory of why they went extinct. Insects first took to the skies about 350 million years ago, some 200 million years ...
Gigantic dragonfly-like insects – the “griffinflies” – ruled the skies around 300 million years ago, but they have long been consigned to evolution’s graveyard.
Three-hundred-million years ago, Earth was very different. The continents had coalesced into Pangea, which was dominated in its equatorial regions by vast coal-swamp forests. With high atmospheric ...
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