(CNN) — When Gino Covacci walks on the beach, he always keeps his eyes peeled for shells, fish and whatever else washes up.
But it’s not every day that he comes across something that seemingly looks right back at him — as happened this week.
Covacci’s discovery: a blue-tinged softball-size eyeball. Even scientists don’t know quite where it came from, beyond the sands of Pompano Beach.
“I find many different things,” he said of his daily walks by the sea, “but not something like this.”
On Wednesday, Covacci said, he was walking along the southeastern Florida beach with a friend visiting from Greece when he spotted something protruding from the sand.
He picked it up, cleaned it off, turned it around and realized he was staring into a giant eyeball.