Mange has decimated the population of wild vicuñas and guanacos in an Argentinian national park that was created to conserve them, according to a study …

While rubbing up against a shark sounds like a risky move if you’re a fish, a collaborative research team led by the University of Miami …

Coyotes can eat by scavenging cougars’ prey but it’s a risky proposition as coyotes often end up killed by cougars too, a new study of …