Pure white

A white Bengal tiger cub presses his face against the glass inside a cage at Buenos Aires' Zoo February 8, 2007 in their first public appearance since being born late last year.. (Marcos Brindicci/Reuters)
Three 45 days-old Bengal white tigers cubs are seen at their cage at the Buenos Aires Zoo Thursday, Feb. 8, 2007. Bety, a captive Bengal white tiger gave birth to two females and one male on Dec. 23, boosting these animals' endangered population. There are only 240 white tigers in the world. (AP Photo/Eduardo Di Baia)

Betty, a female white Bengal tiger, holds up one of her cubs in a cage at Buenos Aires' Zoo February 8, 2007. Betty gave birth to three cubs on December 23, 2006. REUTERS/Marcos Brindicci (ARGENTINA)