Experts believe the famous Mona Lisa artwork may be unfinished.
It's thought Leonardo da Vinci had a severe fainting episode leaving him with a "claw" hand, unable to hold a paintbrush.
A portrait of the artist shows his right hand wrapped in bandages.
Even though da Vinci drew with his left hand, he painted with his right too.
Rsearchers believe the injury may have forced him to leave many works incomplete.

Billie Eilish and James Cameron team up for immersive and intimate tour film
Lively, Baldoni lawyers spar over damages ahead of 'It Ends With Us' trial
Taylor Swift files to trademark her voice, likeness to ward off AI deepfakes
Kimmel says his joke was misconstrued, Trump calls ABC to fire late-night host
Worker dies during stage assembly for Shakira concert in Rio
