As humans exert ever-greater influence on the Earth, their preferences will play a substantial role in determining which other species survive. New research shows that, in some cases, those preferences could be governed by factors as subtle as small color highlights a creature displays.

As humans exert ever-greater influence on the Earth, their preferences will play a substantial role in determining which other species survive. New research shows that, in some cases, those preferences could be governed by factors as subtle as small color highlights a creature displays.

In the movie Happy Feet, Mumbles the emperor penguin discovers that overfishing by humans is causing a famine in the penguin colony in Antarctica. If we're not careful, a similar type of situation (minus the tap-dancing) could take place on the Patagonian coast of Argentina, researchers say.