Photo of the day

Bear Grylls prepares for Simu's final test in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Hazen holding onto a rope while swimming against the rapids. This is from Primal Survivor: Ultimate Journey.

Albert the Malayan Tapir has been showing signs of a splayed kick when he walks, having his keepers concerned. This is from Secrets of the Zoo: Tampa.

Simu Liu attempts to start a fire as part of his final challenge in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Silvio is the Southern Vested tamandua officially retired and is now a part of the zoo's Ambassador Department. This is from Secrets of the Zoo: Tampa.

Natalie Portman (R) and Bear Grylls in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Hazen crouched beside basket on the banks of the Mekong. This is from Primal Survivor: Ultimate Journey.

Bear Grylls (L) short ropes Natalie Portman down steep terrain in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

The Zoo staff is excited to celebrate Silvio the Southern vested tamandua's 10th birthday -- making Silvio one of the oldest tamanduas in human care. This is from Secrets of the Zoo: Tampa.

Hazen cutting a piece of a medicinal root. This is from Primal Survivor: Ultimate Journey.

ZooTampa is home to 3 Hartmann's mountain zebra -- Father Rex and two fouls, Aziza and Rafiki. This is from Secrets of the Zoo: Tampa.

Hazen Audel in a river holding snake positioned to strike at him. This is from Primal Survivor: Ultimate Journey.

Bornean orangutan RanDee is doing an amazing job caring for her newborn baby and taking on her new role as mom. This is from Secrets of the Zoo: Tampa.

Bear Grylls arrives to pick up Natalie Portman in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Malayan Flying Foxes are giant bats, with wingspans of up to almost 6 feet long. This is from Secrets of the Zoo: Tampa.

The Water Monitor is an extreme carnivore, they will eat about any animal that they believes they can consume. This is from Animal Fight Night iV.

Hazen trekking through boulderfield on the edge of the jungle. This is from Primal Survivor: Ultimate Journey.

If cornered and provoked it will hiss and strike and if restrained will attempt to bite. The bite is powerful and the teeth may inflict painful cuts, but this is not serious as there is no venom. This is from Animal Fight Night iV.

Hazen making kindling with his machete for jungle campfire. This is from Primal Survivor: Ultimate Journey.

Spotted hyenas are often called “laughing hyenas” because their giggle vocalization sounds very much like hysterical human laughter. This is from Animal Fight Night iV.

Bear Grylls rappels down an avalanche prone cliff in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Leopards have incredible strength and can take down prey 10 times their weight. This is from Animal Fight Night iV.

Hazen Audel standing on a cliff beside a waterfall. This is from Primal Survivor: Ultimate Journey.

Bear Grylls and Natalie Portman in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Bull Moose have fearsome antlers equiped with up to 30 sharp spikes for use in combat. This is from Animal Fight Night iV.

Bear Grylls in RUNNING WILD WITH BEAR GRYLLS: THE CHALLENGE.

Singapore Stadium. This is from Superstructures: Engineering Marvels.

Don Pettit. This is from Superstructures: Engineering Marvels.

Satellite View With Earth In The Background. This is from Superstructures: Engineering Marvels.

Singapore Stadium. This is from Superstructures: Engineering Marvels.

Shot of the rollers on the roof of the Singapore Stadium with the stadium seats and pitch below. This is from Superstructures: Engineering Marvels.