Millions of years ago, oversized insects such as griffinflies boasting wingspans comparable to today's hawks scuttled across (and fluttered above) the planet. But why these jumbo jets of the insect ...

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 ...

The size of dragonflies and damselflies varies around the globe. These insects are generally larger in temperate areas than in the tropics. According to a new study from Lund University in Sweden, ...

Giant prehistoric insects may not have depended on high oxygen levels after all. Scientists now think something else must explain their massive size. Credit: SciTechDaily.com The true reason ancient ...

Three hundred million years ago, dragonfly-like creatures with wingspans stretching 70 centimeters patrolled the skies of a world nothing like our own. These griffinflies, as paleontologists call them ...

I like big bugs. I cannot lie. But which insect is the biggest? I asked my friend Rich Zack. He’s an insect scientist at Washington State University. He told me the answer depends on how you define ...

Turns out, as dinosaurs evolved flight and eventually took to the skies as birds, they beat down the huge insects already living there, effectively putting a cap on insect size through predation and ...

Imagine a dragonfly with a two-foot wingspan whizzing by your head. That was prehistoric Earth, and scientists just realised they've had the wrong explanation all along.Some 300 million years ago, the ...