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。507Please respect copyright.ＰＥＮＡＮＡI8UZoDbvFI
507Please respect copyright.ＰＥＮＡＮＡvVcTXHV77k
507Please respect copyright.ＰＥＮＡＮＡGOpYQywQs9
（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。507Please respect copyright.ＰＥＮＡＮＡL5ptGLbHyP
507Please respect copyright.ＰＥＮＡＮＡqIcrn9nq83
507Please respect copyright.ＰＥＮＡＮＡ6Ia5tgHc0j
為何會塗糞上身，而且為何又如此揀擇呢？507Please respect copyright.ＰＥＮＡＮＡ9pyI9FuxIo
507Please respect copyright.ＰＥＮＡＮＡTRNlUY6IHz
（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。507Please respect copyright.ＰＥＮＡＮＡEGk2Q9UFM8
507Please respect copyright.ＰＥＮＡＮＡwbhmeGyinz
507Please respect copyright.ＰＥＮＡＮＡCsJ1y410OR
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。507Please respect copyright.ＰＥＮＡＮＡuoUZMpl5RH
507Please respect copyright.ＰＥＮＡＮＡJOTB7X7P0B
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。507Please respect copyright.ＰＥＮＡＮＡ8tf8CgGS5P
507Please respect copyright.ＰＥＮＡＮＡpX6tHIa456
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。507Please respect copyright.ＰＥＮＡＮＡ6jgSEZOlRi
亦有可能的是，馬糞還有另外的功用尚未被揭曉出來。507Please respect copyright.ＰＥＮＡＮＡFoHzJYjLGZ
507Please respect copyright.ＰＥＮＡＮＡfSKNpBWsPx
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。507Please respect copyright.ＰＥＮＡＮＡ2OQJqxHhWu
507Please respect copyright.ＰＥＮＡＮＡhXUvbKY2A1
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/toc507Please respect copyright.ＰＥＮＡＮＡVXwy0ESuLy
507Please respect copyright.ＰＥＮＡＮＡj6Ji2aBVTO
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。507Please respect copyright.ＰＥＮＡＮＡ3qSVskwNju
507Please respect copyright.ＰＥＮＡＮＡ1iM2oFrM5V
Link:507Please respect copyright.ＰＥＮＡＮＡGvmc4T8YY2
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio507Please respect copyright.ＰＥＮＡＮＡNf7VqAuWXz
507Please respect copyright.ＰＥＮＡＮＡI4xmXdG58a
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。507Please respect copyright.ＰＥＮＡＮＡkksoxv2wnt
507Please respect copyright.ＰＥＮＡＮＡy7VwdM8ftf
https://www.instagram.com/potatopigtongue/507Please respect copyright.ＰＥＮＡＮＡNa7WSU3vJS
507Please respect copyright.ＰＥＮＡＮＡCcq7KkFvcX
Ref1:https://www.pnas.org/content/early/2020/12/01/2004640117507Please respect copyright.ＰＥＮＡＮＡ2kFSt4wk9b

507Please respect copyright.ＰＥＮＡＮＡJkOzhokZ9S

507Please respect copyright.ＰＥＮＡＮＡ927JfDFeCd

真實影片:https://www.sciencemag.org/sites/default/files/120720-pandas.mp4507Please respect copyright.ＰＥＮＡＮＡOUzCzRUYv1
507Please respect copyright.ＰＥＮＡＮＡjJVw2xhO0B

ns216.73.216.237da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章