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1: Playful creatures. Close-up photography, roving camera footage and scientific analysis are among the methods used to give an insight into our pets' behaviour. From the meaning behind a rabbit's hop to the reasons why hamsters love to run in a wheel, the show employs minicam carrying dogs, moving x-rays, thermal imagery and more to reveal how and why our pets play.

2: Secretive creatures. More extraordinary photography and close-up video footage that offers an insight into our pets' behaviour. This episode focuses on hidden senses and secret communication skills, including how dogs use their sense of smell to navigate a city, how a goldfish's secret senses can detect tiny movements in the water, and how horses move their ears to communicate.