A grapefruit sized eyeball, discovered on a beach in the US, is puzzling wildlife officials who have not been able to identify the species of creature that seems to have lost it.

State wildlife officials in Florida are baffled by the giant sized blue orb, which was discovered by a man on Wednesday at Pompano Beach, north of Fort Lauderdale.

'It was very, very fresh,' Gino Covacci, who discovered the eyeball, told the Sun Sentinel on Thursday. 'It was still bleeding when I put it in the plastic bag'

Mr Covacci, who made the alarming discovery during his morning walk, said he took the eyeball home and put it in the fridge. He then notified the local police.

Mystery Eyeball Video Report