For the best crab viewing, Australian officials advise tourists (pictured, a Christmas Island visitor in an undated photo) to arrive during the last quarter of the moon in either November or December.
每年十一月或十二月的下弦月是最佳的观蟹时机，澳大利亚官方建议游客们选择这个时间前来圣诞岛观光。
The same went for the basketball-size coconut crab (see picture), the world's biggest land crab, of which Christmas Island has the world's largest population.
篮球大小的椰子蟹(coconut crab)也是科学家们研究的对象，椰子蟹是世界上最大的陆地蟹类，圣诞岛上的椰子蟹数量是世界上最多的。
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