Putting a collar on a bird or hanging a radio round a black bear's neck really can help us to investigate animals 'biology and to understand their movements and distribution, and only by increasing their knowledge of nature can humans take the correct action to protect and manage animal resources.
確實，在鳥類身上掛項圈、黑熊脖子套無線電等等，有助於進一步探討動物的生態與瞭解其遷徙、分佈；人們對自然的知識因此增長，也才能採取正確的措施保護、管理動物資源。