Tuvalu at the Pacific Games similarly rotated on a four-year basis in the intervening years between the main games. A combined Gilbert and Ellice Islands team participated at the 1963, 1966, and 1971 South Pacific Games. An athlete from Tuvalu (then Ellice Islands), namely Nelu Arenga, is at least documented for 1971. Athletes from Tuvalu attended the 2003 South Pacific Games for the first time. Logona Esau was the first athlete from Tuvalu to win a medal at an international competition, when he took bronze at the 2005 South Pacific Mini Games in Koror, Palau. Tuvalu competed at the 2007 Pacific Games in Apia, Samoa.
Endemism in the Hawaiian Islands was critical to the formulation of his theory of evolution is far exceeded in the more isolated Hawaiian Islands. The relatively short time that the existing main islands of the archipelago have been above the surface of the ocean (less than 10 million years) is only a fraction of time span over which biological colonization and evolution have occurred in the archipelago. High, volcanic islands have existed in the Pacific far longer, extending in a chain to the northwest; these once mountainous islands are now reduced to submerged banks and coral atolls. Midway Atoll, for example, formed as a volcanic