See images from Who Sank The Bismarck? on National Geographic Channel.
Pat travels to Vancouver Island to track down one of the world’s most legendary monsters.
A distinct animal call in the dark of the Amazon energizes Pat’s investigation.
Flick through our selection of images that show the unique bond Kevin Richardson shares with a selection of big cats.
Check out CGI photos of what it could look like if Earth is attacked by alien spacecrafts.
Top scientists and military strategists predict the impact that contact with an advanced alien race could have.
Some animals have helped their human companions with various medical conditions.
The dogs of the U.S. Customs and Border Protection team are vital in the battle to keep America safe.