Reminds me of Russian nesting dolls. From NBC News.
Shark is swallowed whole -- by an even bigger shark
Aug. 19, 2013
Everyone knows the story: The little fish gets eaten by a big fish, and the big fish gets eaten by an even bigger fish and so on.
But it isn't often that the big fish is a shark — in this case, a dogfish — that then gets swallowed whole by a much larger sand tiger shark (Carcharias taurus), one of the nastiest-looking top predators in the ocean.
This bizarre "turducken of the sea" photo was captured by researchers at the University of Delaware's Ocean Exploration, Remote Sensing, Biogeography (ORB) Lab. The scientists were in Delaware Bay this month to recapture sand tiger sharks that had been tagged with satellite-tracking tags, or to recover tags that had come off prematurely.