Dogs: Their Secret Lives

Our lives have radically changed in the last 50 years and so have those of our dogs. Man's best friend is spending more and more time home alone.

Using hidden cameras and a ground-breaking new study from the world's leading dog scientists, this documentary reveals what our dogs get up to while we're out.

Footage from dozens of homes shows sleepy, active, howling and fretful dogs. Infrared cameras reveal what's happening inside Bruno the boxer/ Rottweiler cross's head, while a dog vocalisation expert analyses Max the Alsatian's howling to understand what he's trying to communicate.

Mark Evans, former chief vet at the RSPCA, investigates what it all means for the 21st-century dog owner. He discovers whether new technology allowing dogs to make phone calls and watch TV is the key to keeping our canine companions happy in the modern British home.

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S2013E57 - The Cruel Cut