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

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 ...

The problem with diffusion is that it’s notoriously slow. The oxygen constraint hypothesis argued that the larger the insect ...

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 ...

William Hawkes received research funding from The Royal Society for his PhD. In 1950, ornithologists Elizabeth and David Lack were watching birds migrate through a Pyrenean mountain pass on the border ...

Trillions of insects embark, largely unnoticed, on epic journeys every year across mountain ranges, deserts and seas, and it is only now, as their numbers suffer huge declines, that scientists are ...

Flying ants and termites are often mistaken for each other during their flying stages. Even before they sprout wings, ants and termites dwell in the same habitats and can appear to be the same shape ...