The extremely rare bigfin squid, a deep-sea creature found more than 2 kilometres underwater, has been spotted in Australian waters for the first time. Deborah Osterhage at CSIRO in Hobart, Australia, and her colleagues came across the squid during underwater surveys in the Great Australian Bight, an open bay off Australia's southern coast. "I knew exactly what it was when I saw it, probably because I'm a bit of a deep sea geek," says Osterhage. "They're very rarely seen around the world." Only three sightings had previously been recorded in the southern hemisphere. Bigfin squid (Magnapinna) have a distinctive appearance: they have large fins that make their main bodies nearly as wide as they are long, and also have extremely long, filament-like tentacles, which they can bend into an elbow-like appearance.