科普專欄–薯不揀單 - 深入淺出–熊貓渡過寒冬的一道妙計

上集我們講述了小臭鼩應對寒冬的一道機制，今集我們將會講述熊貓應付寒冬的一道怪招。442Please respect copyright.ＰＥＮＡＮＡMAHa3mF3fc
442Please respect copyright.ＰＥＮＡＮＡ0pGFU9eCAv
442Please respect copyright.ＰＥＮＡＮＡOKFwOsEIhe
（圖2）有研究發現（Ref1)，當攝氏低過15度的時候，熊貓會將馬糞塗滿全身，而且選糞中亦有一定的揀擇，牠們並不會採用暴露於大自然間超過10日的馬糞。442Please respect copyright.ＰＥＮＡＮＡZ4Xxjrd6xZ
442Please respect copyright.ＰＥＮＡＮＡtqr5Imyw4D
442Please respect copyright.ＰＥＮＡＮＡWkTmLFe8ko
為何會塗糞上身，而且為何又如此揀擇呢？442Please respect copyright.ＰＥＮＡＮＡ6IRe47zUA6
442Please respect copyright.ＰＥＮＡＮＡDr5qzFJOqp
（圖3）最後科學家發現，新鮮馬糞含有一定份量的化合物，BCP/BCPO (beta-caryophyllene/caryophyllene oxide) ，而這些化合物具有抑壓負責感測寒冷的TRPM8蛋白質功效。442Please respect copyright.ＰＥＮＡＮＡQaKg23eWIW
442Please respect copyright.ＰＥＮＡＮＡDoAfIkNBPs
442Please respect copyright.ＰＥＮＡＮＡ4sdEeVnq8Y
利用老鼠作實驗體，在牠們身體塗上BCP/BCPO液體以模仿熊貓塗馬糞的舉動，對比塗上鹽水的對照群組，塗上化合物液體的老鼠較傾向行走寒冷的地方，而且亦較少互相擁抱取暖。442Please respect copyright.ＰＥＮＡＮＡn1NKYSYsL4
442Please respect copyright.ＰＥＮＡＮＡ4vy5FvMtt1
因此科學家推斷，熊腦大有可能透過馬糞中的化合物抑制身體的TRPM8蛋白質，以自欺欺人的方式盡量減低身體感知寒冷的能力，使自己感覺良好渡過寒冬。442Please respect copyright.ＰＥＮＡＮＡhRg9pNF3A9
442Please respect copyright.ＰＥＮＡＮＡjb0Gm3Etgm
但為何熊貓會懂得馬糞中含有對應的化合物，那就還是一個無法拆解的謎。442Please respect copyright.ＰＥＮＡＮＡaFfQNyB99A
亦有可能的是，馬糞還有另外的功用尚未被揭曉出來。442Please respect copyright.ＰＥＮＡＮＡi6XV6z63in
442Please respect copyright.ＰＥＮＡＮＡLvxsuT7ucn
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。442Please respect copyright.ＰＥＮＡＮＡ7Jo6oNotV5
442Please respect copyright.ＰＥＮＡＮＡ5BQjmcB5oA
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc442Please respect copyright.ＰＥＮＡＮＡhMPOKJk7Dg
442Please respect copyright.ＰＥＮＡＮＡgLpxt8BAcc
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。442Please respect copyright.ＰＥＮＡＮＡzjMbyjzyo4
442Please respect copyright.ＰＥＮＡＮＡ11i8Y3INI9
Link:442Please respect copyright.ＰＥＮＡＮＡWDM7ikuqdC
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio442Please respect copyright.ＰＥＮＡＮＡkOrVs4hsCH
442Please respect copyright.ＰＥＮＡＮＡePgChdypXs
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。442Please respect copyright.ＰＥＮＡＮＡcvU2TSP8PF
442Please respect copyright.ＰＥＮＡＮＡBloaxd8GQ9
https://www.instagram.com/potatopigtongue/442Please respect copyright.ＰＥＮＡＮＡISlF9KMJIf
442Please respect copyright.ＰＥＮＡＮＡKa8WBibf6L
Ref1:https://www.pnas.org/content/early/2020/12/01/2004640117442Please respect copyright.ＰＥＮＡＮＡjVUMQ7MLQL

442Please respect copyright.ＰＥＮＡＮＡuH88qbpRbr

442Please respect copyright.ＰＥＮＡＮＡ4pSpXLACrw

真實影片:https://www.sciencemag.org/sites/default/files/120720-pandas.mp4442Please respect copyright.ＰＥＮＡＮＡGSY107GiD2
442Please respect copyright.ＰＥＮＡＮＡatXcYzKScc

ns3.133.116.221da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章