A study in the journal Polar Biology has described a new species of orca that has been discovered off the coast of New Zealand. The whale has been classified as Orcinus orca Type D and is characterized by a very small white eye-patch and bulbous forehead.
Wetpixel senior moderator, Shawn Heinrichs (shawnh), has captured a dramatic underwater encounter between orcas and sperm whales off the southern coast of Sri Lanka. The images have been featured in Wired magazine. (Video added).