National Geographic: Brown Bears Use 'Human Shield' to Protect Their Cubs
Mother bears have a difficult choice: Take their cubs nearer to humans or risk infanticide by males looking to mate.
A mother grizzly leads quintuplets in Katmai National Park in Alaska. New research provides a surprising insight into how mother bears may keep their cubs safe from dangerous adult males.
Photograph by Eberhard Brunner, Alaska Stock, National Geographic
You might think that winter is the most dangerous...