The picture shows a bunch of dogs in the train carriage, free of their carrier, as they enjoyed special treatment on Saturday on a pet-friendly bullet train from Tokyo to the resort town of Karuizawa near Nagano in central Japan. They normally have to travel in a carrier on the shinkansen (the proper name for the bullet train).
Two useful tags. Click either to see the articles: Speciesism - 'them and us' | Cruelty - always shameful