It's every pet owner's worst nightmare: you realize your beloved pet has vanished from your home and is out in the world without any food, shelter or love. Now, there's a new team that can help you find your pet faster than those yellow flyers, social media posts or animal psychics can. Follow the tale of the brave trackers and their highly-trained dogs tasked with finding America's lost pets in Nat Geo WILD's new series Trackers.

When ancient war tactics became overwhelmed by powerful new weapons like tanks, air attacks, weapons of mass destruction and submarines, a pivotal game-changing moment in history occurred. History is delving into the background of each weapon explaining the how and why they were developed, the strategy, and their ultimate effectiveness.

Historians, biographers and personal friends of Pulitzer Prize-winning author Margaret Mitchell reveal a complex woman who experienced profound identity shifts during her life and struggled with the two great issues of her day: the changing role of women and the liberation of African Americans.

From the churning interior to the oceans and life on land, view the world as it's never been seen before. Cutting-edge tools offer an inside look at Earth as it breathes, heals and flexes its muscles.

This series showcases France’s environmentally-friendly construction projects, proving to the world how building green is possible and necessary.

Discovery Channel documentary