Why do we have such a close and complex relationship with dogs? No matter whether you love or hate them, it’s undeniable they’ve built up a special relationship with us that most animals haven’t.

On this episode of The Why Factor, we find out why dogs are so special. Mary-Ann Ochota delves into the emotion, science and history that sets them apart - be they friend, foe or food.

(Image: Essex Search and Rescue, Credit: Gabriela Jones/BBC)