Walrus GPS

Well, it isn't exactly TomTom, but scientists are going to start tracking walruses with GPS tags.
They'll be attached from a distance by shooting a crossbow at the walruses. Much of the effort is aimed at getting a better sense for how these animals move around, but it might also help monitor changes in patterns as an impact of climate change. It is amazing to realize how much we have left to learn about an animal that seems so familiar and common at zoos.