In 2010, a mother and a whale calf were washed up on shore in New Zealand. Scientists didn't think it was anything at the time, but during further DNA testing, dicovered the whales were a very rare species. The spade-toothed beaked whale has never fully been seen by a person until then. There have been skulls of spade-toothed beaked whales found in New Zealand and Chile, but have never been seen alive. They supposadly have similar behavior to other whales and dive deep down for their food, like squid and other fish. Scientists buried them in the sand in 2010 after they collected DNA but after the tests were performed, they were dug back up for further research.
http://abcnews.go.com/blogs/technology/2012/11/worlds-rarest-whale-found-on-new-zealand-beach/
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