The northern snakehead is one of the most unsettling invasive species in America: a fish that can wriggle across land, survive in low-oxygen water, and devour everything from frogs to birds. Now ...

If you’re lucky enough to have an osprey nesting near you, you might also be lucky enough to watch it hunt for its next meal. Fish account for 99% of a “sea hawk” bird’s diet, but they’re unable to ...