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

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 ...

Possibly one of the most terrifying flying insects that you’re ever likely to encounter is the Asian giant hornet (Vespa mandarinia). Asian giant hornets have a wingspan of around three inches and a ...

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 ...

Following the recent storms in Bexar County, residents might notice large groups of flying insects — but what are these creatures? Molly Keck, an entomologist with the Texas A&M AgriLife Extension ...

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

Add Yahoo as a preferred source to see more of our stories on Google. Using weather radar, scientists tracked flying insects across the United States for a decade. They found stable national numbers ...

Concern about insect losses has grown steadily, but most evidence comes from small studies focused on certain species or places. That makes it hard to understand what is happening at larger scales. A ...