Sticking your tongue out while letting out a bellowing grunt may not be the best way to find a significant other for humans, but the trick sure works for male bison. The bulls' pickup line is known as ...

Sticking your tongue out while letting out a bellowing grunt may not be the best way to find a significant other for humans, but the trick sure works for male bison. The bulls' pickup line is known as ...

1. Natural History and the Twenty-First Century -- 2. Bison of the Past, Present, and Future -- 3. The Study and the Badlands Ecosystem -- 4. Social Spacing and Land Use Systems -- 5. Population ...

Hear bison roar during mating season at Neal Smith Wildlife Refuge Male bison bellow to show strength and fend off rivals during their mating season, according to U.S. Fish and Wildlife Service.