Biologists document changes in teeth and skull structure in two species in southern Quebec over past 50 years

The AMP/ASCO/CAP guidelines establish a four-tiered system for categorizing the clinical significance of somatic sequence variants based on evidence of their impact on cancer care

Researchers determine that US Atlantic sea nettle and the Atlantic bay nettle are individual species

Recent study is the first to analyze on a large scale the relationship between food insecurity among smallholder farms in Africa and Asia, rainfall patterns, and a range of interventions

Scientists suggest their findings could lead to a way to deliver drugs to parts of the body that are otherwise difficult to treat

Flies can be more than pesky picnic crashers, they may be potent pathogen carriers, too

Ecological air conditioning offers short-term protection from a warming climate

The arrival 36 years ago of a strange bird to a remote island in the Galapagos archipelago has provided direct genetic evidence of a novel way in which new species arise

Fine felted nanotubes

Original concerns that cloning caused early-onset osteoarthritis in Dolly the sheep are unfounded