To Coexist with Humans, Tigers Take to the Night: How can humans and large predators peacefully coexist in the same space? A new study shows tigers in Nepal have adapted their behavior, becoming more active at night, to avoid their human neighbors.Tongue-Eating Parasites Inspire New Horror Movie: The tongue-eating louse is a fish parasite that destroys and then becomes a living substitute for its host's tongue. It's also the inspiration for a new horror movie. Stefanie Kaiser, a postdoctoral fellow at the National Institute of Water and Atmospheric Research in Wellington, New Zealand discusses these bizarre parasites and explains why the truth is even stranger than fiction.