A chipmunk gathers nuts for the winter, amassing about 6,000 of them by end of fall. But he needs to keep an eye out for pickpockets...

A team of Harris hawks work together to chase down a cottontail rabbit in the Sonoran Desert, weaving in and out of cacti as they home in on their prey.

In Mexico's Gran Desierto de Altar desert, a fringe-toed lizard outruns a sidewinder rattlesnake.

This one-pound bunny, called a pygmy rabbit, gets into a high-speed chase with a long-tailed weasel.

An old bighorn sheep and a young contender collide head-on in a fight for mating rights. Their thick, shock-absorbing skulls can withstand 800 pounds of force.

An acorn woodpecker guards its carefully stashed nuts from a very hungry and persistent squirrel.

A baby mountain goat gets separated from its mother and must battle the raging rapids to be reunited.

For the male jumping spider, flirting with a female is a dangerous game. If he fails, she'll stab him and slurp out his insides; if he succeeds, she'll be mesmerized.

In the wintry foothills of North America, a baby black bear's life begins. He must "learn the ropes" from mom in order to survive.

Olive Ridley sea turtle hatchlings run the gauntlet in Costa Rica. Only 5 out of 100 will make it through their first 8 hours out of the nest.

Go behind the scenes of the alligator sequences with North America Cinematographer Sophie Darlington and Assistant Producer Ben Wallis.

Go behind the scenes of the fighting mustangs sequence with North America cinematographer Sophie Darlington.

The adorable collared pika is as cute and cuddly as they come, that is unless you're a bird that's blown off course in the Alaskan wilderness...

In this deleted scene from North America, starving bison struggle to survive when winter sets in, and a bison calf succumbs to the elements.

In this deleted scene from North America, gray wolves hunt caribou in Labrador, Canada. Their hungry pups are counting on them to make a successful kill.

The amazing sights and sounds of North America's savage coasts come to life in our split-second highlights real.

The amazing sights and sounds of North America's savage coasts come to life in our split-second highlights real.

Ben takes the Mayor of Las Vegas, Oscar Goodman, for a spin in the Cash Cab with David Brenner.

Lance Burton uses a lifeline, only to realize he already knew the correct answer.

Sometimes, he just can't get it right the first time. See Ben try over and over and over...

A compilation of incorrect answers from the Cash Cab.

Just, who IS Ben Bailey? Meet the many personalities -- and facial expressions -- of Ben.

Canadian actor & Kids in the Hall vet, Dave Foley ambushes an unsuspecting group of guys in the Cash Cab. The group does not recognize him, but Dave assures them he is in fact a celebrity. Can this Bug's Life star lead these unbelievers to victory?

Cash Cab surprises an unsuspecting couple with celebrity guest Scott Bakula.

In the pilot episode of this hilarious new game show, two couples - from two different generations - see if they have the trivia chops to ride this elevator to the top.

Comedian Gilbert Gottfried proves to be a valuable asset to his team, especially when discussing certain imaginary birds.

Actress and comedienne, Susie Essman, surprises a couple of huge fans and a dog named Dorothy Pickles. Will her New York sensibilities help these two make it to their destination with cash in hand?

Ben Bailey is very excited to have Matthew Perry of Friends fame in the Cash Cab. Will his trivia skills 'be there' for the contestants?

Newlyweds, Kareem and Brandi, charm our hosts as they take a ride in the Cash Lift. Hope they're not afraid of snakes...

Will Reis' ability to talk to spirits help him reach the top floor? And the Cash Lift opens its doors for our first set of twins, Brittany and Bailey. Will their nerdy knowledge win them money, or will they both be dropped back off in the lobby?

Mother and son duo, Cat and Zack, take on the Cash Lift in this season finale episode. The only thing that stands in their way tarantulas, lightsabers and tricky questions!

The MythBusters take on a scene from the '80s classic Real Genius: What happens when you fill a house with popcorn ... then make it all pop (with explosives, in this case)?