Scientists have known that some insects can hold their breath for hours or even days. A new study suggests why: Too much air would kill them. Subscribe to read this story ad-free Get unlimited access ...

A need to avoid overdosing on that dangerous gas—oxygen—may be what drives some insects to shut down their breathing holes periodically. That’s two researchers’ proposal to explain why many ants, ...

Insect respiration is commonly thought to rely solely on direct gas exchange through air-filled tracheal tubes. The discovery of oxygen-transporting blood cells in fly larvae reveals a previously ...

How many legs do insects have? Insects have six legs. These legs are attached to the central part of an insect's body, the thorax, and they are controlled by muscles in the thorax. Insects have hearts ...