Fin whales are unlikely animals. At about 74 tonnes, they're the second largest living creature (after the mighty blue whale), and their cruising speed underwater can surpass 40 km/h (which is why they're sometimes called "the greyhound of the sea"). Fin whale sightings are pretty rare, but recently, one researcher with the Spanish cetacean conservation organization CIRCE got lucky while out on an expedition. In the video above, taken in the Straits of Gibraltar you can see the great beast leaping out of the water twice in a row.
There are about 100,000 fin whales in the oceans, although they're considered an endangered species, since their numbers plummeted in the 20th century due to commercial whaling (only Iceland, Greenland and Japan currently hunt the mammals). Unlike humpback whales, which are famous for breaching the surface of the water, fin whales rarely leap out from under the waves, making the video above particularly rare. The CIRCE researcher also managed to capture this impressive still image:
Via Atlantic Wire