The little animals known for their toughness have normal lifespans even when subjected to multiple cycles of freezing and thawing.

中文翻译：

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冷冻、解冻、重复：冷冻的缓步动物仍能达到成熟的年龄

以坚韧着称的小动物即使经过多次冻融循环，也有正常的寿命。