隸屬山蟻亞科的螞蟻，尾部具有可分泌酸性液體的器官。784Please respect copyright.ＰＥＮＡＮＡGVwyTu9zoB
784Please respect copyright.ＰＥＮＡＮＡT85dkQhxLX
784Please respect copyright.ＰＥＮＡＮＡiuD2PduoZm
甲酸(Formic Acid)是酸性液體的主要物質，普遍認作為抵禦外敵之用。784Please respect copyright.ＰＥＮＡＮＡJ9y5ius4pT
784Please respect copyright.ＰＥＮＡＮＡQpX8wHWorm
（圖2）研究(Ref1)發現，餵食山蟻亞科螞蟻含有10%蜜糖成份的水(pH5)後，其消化器官的pH值會有所降低;pH越低，泛指酸性越重。784Please respect copyright.ＰＥＮＡＮＡEFTN7RbPRa
784Please respect copyright.ＰＥＮＡＮＡICsoAAo3vI
784Please respect copyright.ＰＥＮＡＮＡmPPFKrx0Zp
784Please respect copyright.ＰＥＮＡＮＡHN196Q6lIS
（圖手3）若果拑制螞蟻的舉動，進食蜜糖水後，其消化器官的pH值並不會有所下降。784Please respect copyright.ＰＥＮＡＮＡjJVm06en21
784Please respect copyright.ＰＥＮＡＮＡAUxjDTkgAt
784Please respect copyright.ＰＥＮＡＮＡtRkHQpuxiN
後來發現，消化器官之所以進食後出現pH下降，是因為牠們進食後會咀嚼尾部的酸性分泌液所致。784Please respect copyright.ＰＥＮＡＮＡi6WahmnVIn
784Please respect copyright.ＰＥＮＡＮＡmLhAfffw5G
當牠們的行動被有所限制後，再也沒能「自食其酸」，因此消化器官的pH值並不會有所下降。784Please respect copyright.ＰＥＮＡＮＡvLNsq2EF0b
784Please respect copyright.ＰＥＮＡＮＡYIdpEQjXxf
（圖4）自食其酸的其中一道作用，就是能夠幫忙消除外來食物對自己有害的細菌。784Please respect copyright.ＰＥＮＡＮＡlqlh1UMGZO
784Please respect copyright.ＰＥＮＡＮＡsJUWcaiMBy
784Please respect copyright.ＰＥＮＡＮＡ0LTLju0ui8
研究故意注入特定的細菌到食物之中，再餵給螞蟻，亦能夠量度出該細菌並沒能夠在酸性分泌液中生存。784Please respect copyright.ＰＥＮＡＮＡUynq320MDe
784Please respect copyright.ＰＥＮＡＮＡO5fxIJcyFp
而我們人類本身的胃部本身就懂得製作胃酸，並不需要「自食其酸」來抵禦外來細菌。784Please respect copyright.ＰＥＮＡＮＡ7A5ccpblLP
784Please respect copyright.ＰＥＮＡＮＡCPIvab4yIw
除非高價買入GME股份，才會自食其酸。784Please respect copyright.ＰＥＮＡＮＡ6uXYuMnDfQ
784Please respect copyright.ＰＥＮＡＮＡXW5JAtHPCA
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。784Please respect copyright.ＰＥＮＡＮＡRRAfs5SbBB
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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/toc784Please respect copyright.ＰＥＮＡＮＡJ5qSqzdMFV
784Please respect copyright.ＰＥＮＡＮＡDU1xeSOdjv
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。784Please respect copyright.ＰＥＮＡＮＡVn0rYpLvPR
784Please respect copyright.ＰＥＮＡＮＡqNVm0wCvMM
Link:784Please respect copyright.ＰＥＮＡＮＡxsXeh1kTlh
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio784Please respect copyright.ＰＥＮＡＮＡg9e1Zcz7br
784Please respect copyright.ＰＥＮＡＮＡqVONz3RXWt
784Please respect copyright.ＰＥＮＡＮＡoZC4Z6HCxn
基於WhatsApp/Facebook等問題，IG將不會再作更新，只會寄居本土LIHKG及Penana。784Please respect copyright.ＰＥＮＡＮＡ7UZhoyeiAy
784Please respect copyright.ＰＥＮＡＮＡRJxxsUfKN1
Ref1:https://elifesciences.org/articles/60287784Please respect copyright.ＰＥＮＡＮＡKqw4eEmfYC
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