In Brazil, the dolphins that team up with local fishermen have their own accent. For over 160 years, wild dolphins have been helping humans catch more fish by signaling when they should cast their nets. Because they use their own unique whistles even around other dolphins, scientists think they may be trying to distinguish themselves as ‘the ones who help humans.’

The town of Baarle-Nassau is split between Belgium and the Netherlands. The border isn’t a straight line, so bits of each country are scattered throughout the town, and some of the buildings are even divided between the two countries. Dutch restaurants close earlier, so when closing time comes, the tables are all moved to the Belgian side.