题目选项分析

Although 35 Asian freshwater turtles were initially placed in captivity in Miami's Metrozoo in the summer of 1987, they were moved to the more temperate environs of the San Francisco Zoo in 1989 after zookeepers realized that the turtles could not survive the heat and humidity of southern Florida.

Although 35 Asian freshwater turtles placed themselves in captivity initially in Miami's Metrozoo in the summer of 1987, they were moved to 1989 in the more temperate environs of the San Francisco Zoo after zookeepers realized that the turtles could not survive the heat and humidity of southern Florida.