A guide in Yellowstone National Park recently witnessed a chase between wolves and bison and caught the action on video. Watch here.

A teen hiking Mt. Whitney hallucinated due to altitude sickness and walked off a cliff. The teen is now showing signs of improvement.

A slew of cute desert animals come calling at this watering hole on a nightly basis (and sometimes during the day, too!). Watch here.

A stunning video from this past weekend shows a tornado in South Dakota. Some people can’t even believe the video is real.

A photographer recently captured the moment three brown bear cubs took a wild ride on their mom’s back as she ran across the landscape.