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© Chris And Monique Fallows / Apex Images Cc / OSF / PhotolibraryA great white shark, Carcharodon carcharias, feeds on a whale carcass at Seal Island, False Bay, South Africa
Palaeontologists have discovered a fossilised great white shark tooth lodged in a four-million-year-old whale mandible bone - a first.
A team led by Dana Ehret, of the Florida Museum of Natural History in Gainesville, unearthed the unique specimen in southern Peru's Pisco Formation, which during the Pliocene, the period around 2 to 5 million years ago, was an ocean.

But did the shark kill the whale, or merely scavenge its corpse? Find out in our gallery.

Journal reference: PALAIOS, DOI: link