In less than 25 years, an invasive fish has become the apex predator of the Susquehanna River in eastern Pennsylvania. Flathead catfish have been flourishing in the river since 2002, growing to 30 to ...

Synovial joints, the lubricated cavity that lets the bones in our shoulders, knees, and elbows slide smoothly against each other, provide freedom of movement to all vertebrates. Scientists have known ...

Brittany Peterson landed an exclusive on an emerging threat to an endangered fish a few weeks after leading a large, all-formats package on conservationists’ efforts to protect the species on the ...