"We can never really know if animals are giving consent, but they do often engage in forms of behaviour which suggest they'd rather not encounter humans," he said.

“我们永远不能真正了解动物是否表示同意，但它们确实经常做出种种行为暗示它们宁愿没遇到人类，”他说。

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"We can never really know if animals are giving consent, but they do often engage in forms of behaviour which suggest they'd rather not encounter humans," he said.

“我们永远不能真正了解动物是否表示同意，但它们确实经常做出种种行为暗示它们宁愿没遇到人类，”他说。

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