Southern Elephant Seals (Mirounga leonina) are the largest species of true seal - mature males grow to 5.8 metres (19 feet) long and weigh up to 4,000 kilograms (8,800 pounds), and are typically five to six times heavier than females. Pregnant females come ashore in September or October to give birth to a single pup, that is weaned in about a month, and then left behind as its mother and dominant bulls return to sea. Weaned pups, called ‘Weaners’, weigh 150-200 kilograms (330-440 pounds) and live off their body fat until hunger forces them to sea to fend for themselves. The Falkland Islands supports a small population of Southern Elephant Seals, mostly on Seal Lon Island, although these youngsters were on Carcass Island in the north-west Falklands. Two weaners were lying on the algae-covered beach at Port Pattison, near the Carcass island Settlement. One weaner was very nervous and headed towards the sea across algae-covered cobbles. On the edge of the beach and in the shallows were several Kelp Geese – the males are white and the females have chocolate feathers edged with white, a small brown Tussac Bird and a Striated Caracara. The nervous weaner stopped and looked back several times – moving on land is a huge effort for Elephant Seals – they move like giant grubs. As it was entering the water a black and white Magellanic Penguin swam by.