On November 3, 2000, another Asian elephant named Chai gave birth to a female calf named Hansa. The new addition interrupted Bamboo's daily routine, and she was not initially welcoming toward Hansa and had to be housed separately. Spending much of her time alone in a small barn stall, she displayed what is believed to be stereotypical behavior for elephants in captivity - pacing and bobbing her head continuously - caused by inadequate environmental and social conditions and not displayed by elephants living in the wild. A
YouTube video taken in May 2001 shows Bamboo exhibiting this behavior, pacing around her small space repeatedly in circles. Bamboo was also known to be aggressive toward keepers; she once grabbed a keeper's bullhook and knocked another keeper down while he was sweeping hay in her stall. In 2005, it was announced that Bamboo would be moving to the
Point Defiance Zoo & Aquarium in Tacoma, Washington in an attempt to integrate her into the "herd" of its two resident Asian elephants, Suki and Hanako, who were similar in age and disposition to Bamboo. According to the Point Defiance Zoo, Bamboo did not show predictable social skills toward newborns or very young calves and therefore was not fit for the Woodland Park Zoo's Asian elephant breeding program. She also had a strained relationship with Seattle's
African elephant, Watoto, who had bullied her in the past and had to be housed separately from her. Bamboo arrived at the Point Defiance Zoo on August 25, 2005, but stayed there for less than a year, as Suki and Hanako did not accept her. As a result, she was housed in isolation for the majority of her time in Tacoma. She was returned to the Woodland Park Zoo on June 11, 2006. == New plans for the Zoo's elephants ==