Why Queen Elizabeth II's Marriage Was Met With Suspicion

Billionaire Elon Musk has donated money to the Mars Society in Utah. Its purpose is to help scientists prepare for the incredibly hostile conditions on the Red Planet.

Inside Look at the Mars Simulation Project in Utah (2:42)

Contrary to popular opinion, the chances of survival in gladiatorial games were higher than originally thought. In fact, only 1 in 9 fights ended in death.

Gladiators Didn't Die As Often As You Think (1:22)

The John Cooper Works edition is the fastest machine MINI has ever built. With a 228 two-liter twin turbo motor, it can hit 0 to 60 in six seconds flat with a top speed of 152 mph.

This Is How MINI JCW Turbo Engines Are Built (2:17)

When France sent ambassador Jean-Marie Bayol to Dahomey to secure a deal for the kingdom's rich natural resources, he was greeted by an elite force of all-women warriors known as the Agooji. Their ferocity set the tone for negotiations.

This African Warrior Ceremony Was Highly Intimidating (3:17)

In 2nd century AD, Celtic warrior Ardala is taken to Rome and tossed in a dark dungeon while her captors decide what to do with her. Little does she know that she'll have to fight if she wants to survive.

This Female Gladiator Captive Had to Fight for Her Life (2:39)

Aisholpan Nurgaiv is a Kazakh girl trained by her father from childhood to be an eagle huntress and is the star of the award-winning documentary "The Eagle Huntress." Her bravery and accomplishments have inspired many.

Meet the Nomad Girl Who Hunts With a Golden Eagle (1:02)

Scythian women adorned themselves with tattoos portraying the animals they hunted. It was believed that these tattoos offered magical protection, and also used to commemorate acts of bravery.

The Significance Behind Ancient Scythian Tattoos (1:38)

Native Montanan Casey Anderson has stumbled across a family of mountain lions living in a nearby cave. He sets up cameras to get a closer look at their lives.

Cameras Catch Adorable Glimpse of Mountain Lion Family (3:32)

Adventurer Casey Anderson has tracked a female mountain lion to her unlikely den: an abandoned ranch close to his home. He ventures inside, camera in hand, for a closer look.

This Mountain Lion Hides Her Kills in Abandoned Ranches (3:23)