Ocearch is a marine research and conservation organisation that specialises in remote tracking of sharks, whales, dolphins and other marine fauna. The above website is a fantastic data source showing the geographical positions of these animals, as well as other information including species, gender and size. I have used this resource in a Year 6 classroom and the students loved exploring where these animals had travelled and the frequency at which they had been recorded by the satellites. The possibilities for data exploration using this resource are almost inexhaustible. Enjoy!