Humans are often embarrassed when a dog trots over and starts sniffing at their groin, or pokes its snout in their butt. The dog has no idea that placing its nose in these parts of the human body ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

INDIANAPOLIS — The yellow Lab, Delila, sniffed around the laundry room, then blew a soft snort through her nose before taking a seat on the floor. The sniff, the sitting down — those were a couple of ...

Monocle visits the headquarters of the TSA’s Canine Training Center to learn more about the rigorous training of US airport sniffer dogs. Deep inside the sprawling Lackland Air Force base in San ...