Sea lion flips over for joy while chasing zoo visitor's hand on the glass

A sea lion at St. Louis zoo in Missouri was entranced by a visitor waving his hand alongside its tank, rolling and weaving through the water trying to chase it.

The magical video, filmed on March 12, shows a man standing next to the sea lion tank, and the sea lion trying to follow the movements of his right hand as he moves it in circles on the glass.

The filmer commented: "This zoo visitor drew a crowd on a cold day getting this sea lion to follow his hand movements.

"The sea lion took preference to this man only and his right hand. He poked at the glass if the man stopped or used his left hand.

"When he would stop, the sea lion would look directly at him and poke at the glass with his snout almost as to gesture that he wanted more ‘commands’."