Domestic animals are rarely associated with Antarctica. However, before non-native species (bar humans) were excluded from the continent in the 1990s, many travelled to the far south. These animals included not only the obvious sledge dogs, but also ponies, sheep, pigs, hamsters, hedgehogs and a goat. Perhaps the most curious case occurred in 1933, when US Admiral Richard E. Byrd’s second Antarctic expedition took with it three Guernsey cows.