Carl Lipo and Terry Hunt proposed that this location’s population of Jubaea (15[1])palms was devastated by Rattus exulans, (15[1])leading to the practice of lithic mulching. A war in this location ended when the “short-ears” (-5[1])pushed the “long-ears” (15[2])into (15[1])their own (15[1])burning trench, (15[2])which is often identified with the Poike (15[1])ditch. Obsidian tools from this location called mata’a, (15[1])used as evidence of widespread warfare, may not have been sharp enough for weapons. (*) Jared Diamond’s Collapse (10[4])argued that (10[1])environmental (10[2])degradation in this location (10[4])stopped the construction of stone platforms (-5[1])called ahu. Thor (-5[2])Heyerdahl’s book (10[1])Aku-Aku argued that this island’s earlier South American inhabitants (10[1])had been displaced by Polynesians. For ten points, name this Chilean island (10[1])known for its stone moai. (10[2])■END■ (10[2])