 When the ship was lost, having become trapped and eventually crushed in pack ice, Shackleton ordered the sled dogs and Mrs Chippy shot, as Shackleton had decided that the animals could not be kept during the arduous journey ahead.Nansen was the ship's cat on , which was used for the Belgian Antarctic Expedition.He was brought on board by cabin boy Johan Koren, and was named after Fridtjof Nansen.