Perhaps it was a whale or basking shark. This is in contrast to the passive feeding basking shark, which does not pump water. Spring and Summer see large numbers of Risso's dolphin, minke whale and basking shark. Whales, dolphins, porpoises and basking shark can be seen from the point. The bay was formerly the site of a basking shark fishery. The teeth of plankton-feeders such as the basking shark are small and non-functional. Dolphins, whales and basking shark are sometimes seen in the sea off the island. Perry's team also sought to register "Right Shark", "Drunk Shark", and "Basking Shark". A rotting basking shark may also resemble a decomposing plesiosaur. On average, the adult basking shark reaches a length of and weighs about . Marine life includes the basking shark which have been known to enter the harbour. Most notably on display was a pickled Basking shark adjacent to the tank of water. The basking shark is a cosmopolitan migratory species, found in all the world's temperate oceans. The basking shark is a coastal-pelagic shark found worldwide in boreal to warm-temperate waters.