Giant ancient sharks had enormous babies that ate their siblings in the womb
(World News Science)

Megalodons are the biggest predatory sharks ever discovered. from www.shutterstock.com Made famous by the 2018 blockbuster The Meg , the largest predatory shark ever discovered, the megalodon , is a bit of a mystery. We know it lived between 15 and 3.6 million years ago and it reached at least 14 metres in length , more than double the size of an adult great white. But learning any more about the giant shark requires a bit of detective work. Because of its soft cartilaginous skeleton, only a few parts of the shark`s body are mineralised and preserved, including its teeth, skull and spine. This means the fossil record is very poor for this animal. Unsurprisingly, the predator`s 17cm teeth...