Motorbike world tour ends in tragedy for couple and their dog.

Australian couple Janell and Stu Clarke set off on a motorbike world tour with their dog Skyla, who was diagnosed with cancer during the trip and eventually passed away. They continued their journey, adopting two more dogs, Shadow and Azra, along the way. The couple slowed down their pace and focused on their relationship after Skyla's death. They have been chronicling their travels on their website, The Pack Track, and launched a small business selling their redesigned dog motorcycle carrier, the Pillion Pooch.