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

Use expert tips and a helpful chart to improve your hawk identification skills. Plus, learn about the common types of hawks ...

A rare predatory fish which lives 2,000 metres below sea level has been spotted in broad daylight. Spanish shark researchers ...

A tagged ferruginous hawk exhibits unusual migratory patterns, surprising researchers with her winter stay in Nebraska.