He collects butterflies and brings them into a lab to lay eggs. Then he puts new butterflies into the habitat.

他聚集了蝴蝶并且把它们带回实验室产卵，然后他就让这些新来的蝴蝶住进栖息地。

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The butterfly rearing process starts with farmers catching a few female butterflies and transferring them to an enclosure where they can lay eggs on host plants.

CNN: Butterfly farmers help protect threatened forests