These insects face great environmental threats including predators and rising water temperatures, but so far they are adapting ...

Mayflies emerge when water temperatures reach 68 degrees, typically peaking in mid-to-late June. While considered a nuisance ...

Scientists scooped sand from a riverbed in Thailand and found two nymphs of rare mayfly species not seen in 22 years, a study said. Photo from Kwanboon and Boonsoong (2025) Knee-deep in a river of ...

Mayflies are aquatic insects with short adult lifespans, often only a few days for males and possibly minutes for some females. Emerging in early summer when water temperatures reach 68 degrees ...