National Geographic explores the genetic journey of cats and dogs and examines the amazing relationship that has evolved over the years between people and these animals.

The heartwarming true story of a loyal dog named Hachiko. This very special friend would accompany his master to the train station everyday and return each afternoon to greet him after work. Even after his master passed away, he continued to return to the same spot at the station every day for the next nine years to wait for his beloved master. During his daily visits he touched many lives and taught the local people about love, compassion, and above...