John Long is a palaeontologist who has studied in depth the 450-million-year history of sharks. When Professor Long joined ABC Conversations he schooled Richard Fidler on some impressive facts about ...
The oldest definitive ancestor of megalodon is a 55-million-year-old shark known as Otodus obliquus, which grew to around 10 metres in length. But the evolutionary history of this shark is thought to ...
Waves splashing over the reef at Bathtub Reef Beach at sunrise on Hutchinson Island, Florida. (Photo credit: Diana Robinson Photography/Getty Images) While the odds of being bitten by a shark are ...