Illustration of two sparring megalodons Clarence 鈥淪hoe鈥 Schumaker, Courtesy of the Calvert Marine Museum
Several fossil teeth from the giant predatory shark Otodus megalodon show scratch marks that could only have been made by members of their own species, suggesting that the聽largest sharks of all time may have fought by sparring with their jaws.
Between 23 million and 3.6 million years ago, megalodon, which may have grown up to 24 metres long, swam the world’s oceans. Now, at the Calvert Marine Museum in Maryland and his colleagues have studied four teeth from fossil sites in North…
