One Mistake Means Certain Death: These Fearless Athletes All Have One Thing in Common, and It Might Not Be What You Think

From free solo rock climbing to jumping motorcycles, it takes a special kind of person to put their life on the line for an athletic feat.

Alone On the Wall

Alex Honnold is the world’s leading free solo rock climber. Free soloing is the act of climbing a mountain or wall without the use of safety gear. This activity is so dangerous that less than 1% of all rock climbers even attempt to free solo anything in their lives.

The More You Know

There's such a thing as a fear of buttons.
Bloodhounds are great marathoners.
The average person walks the equivalent of five times around the world in their lifetime.
Hippos have the largest mouths of any animal on land.

Post originally appeared on Upbeat News.