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1. The chart maps the liveliest to the idlest creatures to reveal that Little brown bats are most lethargic, sleeping for around 19.5 hours a day. 图表展示了从最活泼的动物到最懒惰的动物，其中小型棕蝙蝠是最嗜睡的，一天大概睡19.5小时。