In late October 1999, the zoo began putting the male and female hundred-pacers together in pairs, and one pair took a liking to each other. The male gently courted the female by licking her head with his tongue. For the next three weeks the couple were inseparable, after which they gradually returned to their solitary lifestyles.
動物園在前年十月開始觀察百步蛇的配對，只見雄蛇溫柔吐信，母蛇昂頭作態，經過三個禮拜的形影不離，兩蛇才又漸漸露出獨行俠的本性，彼此遠遠分開。