Nightingale Island – Sub-Antarctic Fur Seal – One Crown – 2011 – Prooflike – Nightingale Island is an active volcanic island that is part of the Tristan da Cunha group. Though it has no permanent inhabitants, Tristan da Cunha has issued this coin for the island to focus attention on the sub-Antarctic Fur Seal. The sub-Antarctic fur seal is medium-sized compared with other fur seals. Males grow to six feet and 350 pounds, whereas females are substantially smaller: four and one-half feet and 110 pounds. Both sexes have distinctive, creamy-orange chests and faces. Males have a dark grey to black back, females are lighter grey and their bellies are more brownish. Pups are black at birth, but molt at about three months. The snout is short and flat. The flippers are short and broad. Sub-Antarctic fur seals live for about 20 to 25 years. About 300,000 of the species are alive today, probably substantially down from when they were first discovered in 1810, as they were hunted for their pelts throughout the 19th century. Due in part to the Convention for the Conservation of Antarctic Seals, populations are recovering rapidly.