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 ...

Scientists rethink why giant insects once ruled the skies, finding oxygen may not explain their size or disappearance.

Scientific consensus is that high oxygen levels allowed these humongous fliers to exist, but a new study throws that idea ...

The problem with diffusion is that it’s notoriously slow. The oxygen constraint hypothesis argued that the larger the insect grows, the further the oxygen must travel to reach the deepest tissues. “As ...

Insects have long rivaled the best human illusionists, creating magic right before our eyes. However, one particular bug stands out from the rest, not only in size but in its ability to blend ...

This is not good news for entomophobia sufferers. A former park ranger traveling in New Zealand has stumbled across the world's largest insect, a Weta Bug, with a wing span of seven inches and the ...

Add Yahoo as a preferred source to see more of our stories on Google. Goliath stick insects (Eurycnema goliath) are among the largest and heaviest insects in Australia, with females reaching 7 inches ...