Prior to 2015, it was believed that orcas entering into the False Bay area only preyed on marine mammals but reports of the pair hunting copper shark and ocean sunfish soon began.

Examination of the carcasses reveal that orcas open the sharks between their pectoral fins in order to remove the fatty livers and likely induce tonic immobility to accomplish this safely.

[7] At least seven great whites believed to have been killed by the duo were found in 2017 including one famous female measuring 16 feet (4.9 m) named Khaleesi that was discovered washed ashore and with her liver removed.

[16] Additionally, the major tourist attraction of shark cage diving has ceased in recent years without the appearance of great whites, impacting the local economy.

[19] Marine biologist Dr. Ingrid Visser has documented that orcas will ram into great white sharks in order to flip them upside down into a catatonic state known as tonic immobility.

[21] In his research, ecologist Salvador Jorgensen has found that different pods of orcas have entered False Bay previously and this did not cause the sharks to flee in the manner that Port and Starboard have.