In some species, grandparents also assist their offspring when their own breeding time is over.

在一些物种中，祖父母也在自己的繁殖期结束后帮助自己的后代养育子女。

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In some species, grandparents also assist their offspring when their own breeding time is over.

在一些物种中，祖父母也在自己的繁殖期结束后帮助自己的后代养育子女。

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