Creature that washed up on New Zealand beach may be world’s rarest whale

Read MoreSpade-toothed whales are the world’s rarest, with no live sightings ever recorded. Until, perhaps, now. One may have washed up onto a New Zealand beach.Spade-toothed whales are the world’s rarest, with no live sightings ever recorded. Until, perhaps, now. One may have washed up onto a New Zealand beach.