Story: Albatrosses

Some albatrosses travel great distances from their nests in search of food. The arrows mark the journey taken by a female southern royal albatross, from her nest on Campbell Island to the Chatham Rise and back. As shown, she mostly fed along steep underwater cliffs, where New Zealand's continental shelf drops away. Her movements were tracked by a tiny satellite transmitter fitted to her body. She flew for almost 16 days, while her mate took his turn sitting on the egg. She covered the first 900 kilometres in 24 hours – an average of 37.5 kilometres per hour. Her furthest point from the colony was 1,200 kilometres, but she flew a total of 6,000. A saltwater sensor showed that just over half of her time was spent in flight; she sat on the water for the remainder.