Explorer 2.0

Phil Keoghan ventures inside the active Masaya volcano in Nicaragua; motorcyclists transport solar panels in Tanzania; an oil mogul's horse cloning business may provide insight to cure diabetes.[National Geographic]

Phil Keoghan visits the Paranal Observatory in the Atacama Desert. Mariana van Zeller speaks with members of the Flat Earth movement. Albert Lin explores the potential of hibernation on Mars and how lemurs can help.[National Geographic]

Host Phil Keoghan heads to Utah to dig for dinosaurs. Tim Samuels reports on the global drop in male fertility. Mariana van Zeller embeds with a goods smuggler in Gaza and Francesca Fiorentini investigates miracle dirt.[National Geographic]

Phil Keoghan witness a daily ceremony on the India/Pakistan border. Tim Samuels looks into tensions between humans and an expanding saltwater crocodile population in Australia. [National Geographic]

Phil Keoghan journeys to Peru to probe the mystery of the boiling river. Mariana van Zeller investigates the unsolved attack on U.S. embassy workers in Cuba and breakthrough technology for people with missing senses.[National Geographic]

A group of Hawaiians live off the food grid. More than 1.5 million U.S. children have potentially fatal peanut allergies and the bald eagle's story of survival after nearly going extinct 40 years ago.[National Geographic]

Phil Keoghan tries an ancient martial arts in India; deadly tornadoes; reporters at risk in Cambodia; talking whales. [National Geographic]

Deep in the frigid woods, Phil Keoghan pays a visit to a hibernating bear's den. He gingerly removes two newborn cubs from under their sedated mama bear so they can be weighed and a biologist can check their development.[National Geographic]

An invasive species; rehab facilities; tracking whales and wolves.[National Geographic]

Super recognizers; ancient mummies; whale sharks; Fukushima.[National Geographic]

Castellers, also known as human towers; grizzly bears; security for marijuana businesses; the color blue.[National Geographic]

Lions; earthquakes; designer dogs; chocolate; Sen. Cory Booker (D-N.J.).[National Geographic]

Inside NASCAR; a human sacrifice discovery; DNA testing; probiotics.[National Geographic]