This is the terrifying moment a polar bear headbutts the glass in a zoo as he attempts to make a lunge for a little girl’s penguin toy.
Excited to see her favourite animal, Emma Garrett, aged four, runs and jumps around in excitement in front of the polar bear enclosure at Saint Louis Zoo in Missouri, USA.
After making a friend in the resident polar bear, Kali, Emma shows off her newest cuddly companion to him, a multi-coloured penguin she picked up from the zoo gift shop.
As she holds the penguin out with pride, the polar bear slides its paws and face down the glass to get a better look at Emma and her new prized possession