为了找到答案,研究人员将章鱼腕足截取下来,观察其行为,这些腕足在离体一小时后仍然相当有活力。最终观察结果显示,腕足断肢不会吸附章鱼皮,但是会吸附剥了皮的章鱼腕足;不会吸附覆盖着章鱼皮的培养皿,但是在吸附涂有章鱼皮肤提取物的培养皿时,会比吸附空培养皿时使用更小的力量。
“The results so far show, and for the first time, that the skin of the octopus prevents octopus arms from attaching to each other or to themselves in a reflexive manner,” the researchers write. “The drastic reduction in the response to the skin crude extract suggests that a specific chemical signal in the skin mediates the inhibition of sucker grabbing.”
“目前为止,研究有了新发现:章鱼皮肤能够防止腕足间相互吸附或腕足吸附自身,”研究人员这样写道。“对皮肤粗提取物的反应急剧减弱说明皮肤中存在一种特定的化学信号,这种化学信号会调解对吸盘吸附的抑制作用。”
In contrast to the behavior of the amputated arms, live octopuses can override that automatic mechanism when it is convenient. Living octopuses will sometimes grab an amputated arm, and they appear to be more likely to do so when that arm was not formerly their own.
与腕足断肢的行为活动相比,章鱼能够在适当时候无视这种自动机制。章鱼有时会吸附一个断肢,而且如果那不是自己的断肢,他们更有可能这么做。
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