https://blog.wongcw.com/2022/07/18/%e9%87%8e%e7%94%9f%e8%9d%99%e8%9d%a0%e8%a2%ab%e7%99%bc%e7%8f%be%e5%8f%af%e5%9c%a84%e5%b9%b4%e5%be%8c%e8%ad%98%e5%88%a5%e8%b7%9f%e9%a3%9f%e7%89%a9%e7%8d%8e%e5%8b%b5%e7%9b%b8%e9%97%9c%e7%9a%84%e9%88%b4/
野生蝙蝠被發現可在4年後識別跟食物獎勵相關的鈴聲