"So the pink color is just blood at the skin's surface, like when humans flush or blush," Rose said. "Same phenomenon. 'Regular' bottlenose dolphins do this all the time too, but you can't tell, because their normal skin pigment is gray."
Years after first being sighted, Pinky is still around and seems to be doing wonderfully. With albino dolphins, their light color often lowers their life expectancy as they can be seen more easily by prey. Pinky, however, seems to be doing just fine.
Marine biologist Dagmar Fertl told Science Blogs that Pinky is one of only 14 known albino dolphins in the world.
It's been about eight years since Pinky was originally discovered, and she's aging gracefully - and might even be pregnant, since she's recently mated.