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

Seasonally cold temperatures and snow finally moved into the Inland Northwest this month. Skiers are happy. And so is a rare insect known as an ice crawler. While most bugs go dormant during cold ...

Quick Take A recent study suggests many Amazon insects already live near their upper heat tolerance, meaning rising temperatures could threaten up to half of species in some regions by the end of the ...