An amazing video has emerged of a leopard 'playing' with a toddler up against the glass at a zoo in the US. <br /><br />The footage, captured last week, shows 17-month-old Grayson bravely standing up to the animal as it repeatedly charges against the glass enclosure. <br /><br />Writing online about the experience, Grayson's mother said "I took him to the zoo and it was neat to see such an active animal!"<br /><br />"This leopard is either playing with or trying to eat Grayson," she continued.<br /><br />"Thank goodness for glass!" she added.