Duncan Johnson knows what failure looks like, and he says it’s given him the sharp eye to spot success too. The chief ...

Thousands of at-risk manta and devil rays become accidental bycatch in tuna fishing nets every year. A simple sorting grid could help save them.

Rays (Batoidea) comprise a highly diverse group of cartilaginous fishes that inhabit ecosystems from shallow coastal areas to the pelagic ocean. They play ...