科学家经研究发现,玩闹是一种有目的的活动。在这个经常充满不确定性和危险的世界,这种活动对动物的生存至关重要。以饥饿的野生北极熊为例,它们更喜欢与被链子拴住的雪橇犬玩耍,而不是将它们吃掉。其实玩闹这种行为不仅仅是童年时期的一种行为,而是会贯穿于一生。喜欢玩闹也不仅仅是 Scientists have found through study that playfulness is a purposeful activity. In a world often fraught with uncertainty and danger, such activities are crucial to the survival of animals. Take hungry wild polar bears as an example, preferring instead to eat them with sledges tied by chains. In fact, play this behavior is not only a childhood act, but will run through life. It’s more than just playing