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 ...

Dogs' sniffing skills may soon get a boost, thanks to a groundbreaking discovery by animal behavior experts in the United Kingdom. Since detection dogs use their exceptional sense of smell to sniff ...

SIOUX CITY — In order to start his mold detection business, Dylan Grimsley needed a dog. Not just any dog, but one that was energetic, curious and ready to put its nose to work. He looked into a few ...

If you’re a dog owner, you’ve probably gotten stuck on a walk much longer than anticipated because of your dog’s incessant sniffing. Why is letting your dog sniff such a big deal? Is it really a ...

TALLAHASSEE — In what could be a first-of-its-kind ruling in Florida, an appeals court Tuesday said a drug-sniffing dog’s alert did not justify police searching a car because the dog could not ...