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Rare tigers


Eduardo Di Baia, Associated Press

Three 45-day-old white tiger cubs play at the Buenos Aires Zoo on Thursday. Mother Bety gave birth to two females and one male on Dec. 23, boosting the animals' endangered population. There are only 240 white tigers in the world. A big box for entries in a naming contest has been filling fast. Winners will be picked in a few months — three children will become "godparents" to the cubs and get a yearlong pass to visit the Argentine zoo.