In a rare and startling marine encounter, a seven-year-old boy has become only the second person in Australia’s recorded history to be bitten by a cookie cutter shark, sustaining a distinctive circular wound that doctors described as both “nasty” and deeply unsettling.

Jack Tolley, from Victoria in southern Australia, was swimming with his mother and older brother in the clear waters of Alma Bay on Magnetic Island, north Queensland, on Friday when the attack occurred. The small but formidable predator sank its razor-sharp teeth into the youngster’s leg, removing a chunk of flesh measuring 73mm in diameter and leaving a near-perfect circular wound that extended almost down to the bone.

Paramedic Wayne Harper, who treated Jack at the scene, said the unusual injury initially baffled medical staff. “I could see down to the fatty tissue, almost down to the bone,” Harper recalled. He went on to describe the cookie cutter shark’s distinctive hunting technique: “They bite you, then flip upside down so they cut through the flesh, then they have a little vacuum to suck the chunk out.”
The species, also known as cigar sharks, earns its name from this unusual flesh-twisting feeding method, which creates clean, circular craters in the bodies of larger marine animals—and, in this exceptionally rare case, a human victim.
Jack’s father, David Tolley, expressed both relief and concern following the incident. “Medically recorded, he’s only the second in Australia to be bitten and it’s a pretty nasty bite,” he said. “We don’t want this to happen to anyone else.”

Despite the severity of the physical injury, which has left him with lasting scarring, young Jack has shown remarkable resilience and has not been psychologically affected by the ordeal. The family was enjoying a holiday in the popular tourist destination when the attack took place, turning a relaxing swim into a moment of terror.
Cookie cutter sharks are rarely encountered by humans due to their preference for deeper offshore waters and their relatively small size, typically reaching only about 50–60 centimetres in length. Their specialised teeth and suction-based feeding strategy make them highly effective at removing plugs of flesh from much larger prey, including tuna, whales, and seals. Friday’s incident serves as a sobering reminder of the ocean’s hidden dangers, even in shallow, family-friendly bays.
Authorities have not issued any formal swimming warnings for the area, but the Tolley family’s experience underscores the importance of remaining vigilant in Australian waters, where marine biodiversity can occasionally produce such unexpected encounters.
As Jack recovers, his story highlights both the wonder and the respect demanded by the creatures sharing our coastal environments.