Orcas prey on great white sharks in South African waters: Orcas prey on great white sharks in South African waters: In this photo taken Wednesday May 3, 2017 and supplied by Marine Dynamics, a great white shark is autopsied on a beach in Gansbaai, South Africa. The formidable shark is just another meal to orca whales, which hunt in groups and can enjoy a diverse diet of seals, … [Read more...] about Orcas prey on great white sharks in South African waters