Researchers on the Windows to the Deep 2019 expedition off the coast of South Carolina were observing a shark feeding frenzy over a swordfish carcass when something extremely unexpected happened. The grouper swallows a whole shark

Some argue: “Well let’s face it they were pretty small sharks weren’t they and a grouper is a big fish. Give it a few more years and it will be the other way round”. The opinion is controversial. This mysterious grouper species lives in very deep water and can grow larger than 500lbs!