Hidden cameras capture the birth of three new litters of puppies, kittens and piglets

This episode focuses on pets' health and watches as the newborn kittens.

Documentary looking at how animals protect their owners.

We meet some puppies whose play-fighting helps them to become well-adjusted later in life.

We meet the super-intelligent parrot who has the communication skills of a young child.

Some six-week-old kittens show their predatory nature.

We look at pets' personalities, including a naughty puppy and a brave hamster.

This episode looks at how pets adapt to their new homes. The cameras also catch a horse that knows his new home so we...