esearch team finds wild medaka engage in surprisingly active nocturnal behavior in their natural river environment.

Scientists have described a nocturnal moth's unique evolutionary trick in replicating the appearance of 3D leaf, with potential applications for the development of advanced camouflage materials and ...

A special Sunday event: a photographic essay celebrating such magnificent birds of prey. These nocturnal hunters hail from Europe, Asia, North America, and South America, and are seen here in photos ...