SOUND ON! If this isn't the most adorable video then we don't know what is. Watch Hari the Greater One-horned Rhino calf blow bubbles in the mud wallow!

Hari has been developing well behind the scenes since his birth on 17 October and has grown in size as well as confidence. Mother Amala is still very protective of her calf and the pair have developed a strong bond.

Video : Keeper Kat Pollock