They have lived in this enclosure since 1988 and have passed through every winter (including the recent El Ni?o bruiser) burrowed down into compost.

• 它们从1988年起就一直住在那里，每年冬天（也包括近年来因厄尔尼诺现象造成的气候异常期）它们都钻入肥堆里越冬。