Video by @bertiegregory. An Asian elephant calf takes a drink with its mother in Yala National Park, Sri Lanka. The Sri Lankan subspecies of elephant is the largest of the Asian elephant species with the biggest bulls weighing over 5000kg/11000lbs. That said, when born, this little calf would have weighed only 100kg/220lbs! Shot during a leopard project for @natgeo, @natgeowild and @stevewinterphoto. Follow @bertiegregory to see this calf trying to go for a swim!