Take for example the Taiwan Endangered Mammals Postage Stamps (1992), featuring the Chinese otter, the Formosan flying fox, the Formosan clouded leopard, and the Formosan black bear, all species which face extinction; as well as the Environmental Protection set (1993).
例如以水獺、台灣狐蝠、台灣雲豹、台灣黑熊等瀕臨絕種動物為題材的「台灣瀕臨絕種哺乳動物郵票」，及以環境保護為題材的「環境保護郵票」，都代表一種過度開發、環境汙染後的反思。