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 ...

Two dogs specially trained to sniff out truffles have helped researchers identify two new-to-science truffle species in the U.S., according to a recent study. Truffles, synonymous with luxury fine ...