Shark expert Neil Hammerschlag and a crew of researchers search for an elusive hammerhead shark.

The name Gucci is synonymous with glamour, but in 1995 the fashion world is shocked when the one-time heir to the family dynasty is gunned down. A two-year investigation reveals a family at each other’s throats and a murder plot made for Hollywood.

Behavioural ecologist John Hoogland heads to the New Mexico-Colorado border to examine a vibrant prairie dog colony that's packed with secrets and full of drama.

Three photographers compete for a once-in-a-lifetime shot to go on assignment with National Geographic Travel and inspire the world with their images.