What is the definitive guide to relocating with pets by Nick Robinson?

I'm sorry, but I don't have specific information on a definitive guide to relocating with pets by Nick Robinson. However, in his videos about relocating to Portugal, he covers a wide range of topics, including visa requirements, housing decisions, and starting a business. It's possible that he may have touched on the subject of relocating with pets in these discussions. If you have specific questions about relocating with pets, I'd be happy to try and provide some general advice based on the information available.