Because chelonians aren't picky about their living conditions, with the exception of a few species such as the Indian star tortoise which has strict temperature requirements and often dies a year or two after being brought into captivity, most species of turtles resemble mutant ninja turtles and adapt quite well to sewers, which are designed to carry away urban pollutants. Turtles are tough.
由於龜類所需求的生存條件不高，除有些種類，如印度星龜對溫度要求嚴苛，常被養一、二年後就死亡外，許多烏龜就像卡通中的「忍者龜」，能居住在專門匯集大都會汙物的城市下水道內，生命異常強韌。