If an ant dies, the other ants will not notice its death. As if it's alive, other ants will pass through the dead ant as it’s not there, until the third day. If the ant died in the nest, on the third day another ant rolls the dead ant to the garbage just outside the nest, which is like a kind of cemetery, like this:
So why three days later? Why they cannot notice the dead ant in first 2 days? Three days after the ants die, they start the chemical secretion of oleic acid, the other ants diagnose by recognizing the oleic acid odor. They say "this ant is fucking dead!" Then they throw him outside the nest.
Ants are so sensitive to oleic acid odor and for them everything that carries this smell is a dead ant. Ant specialist Edward O. Wilson said, “man I gave my whole life for these ants, let me troll them for once”, and cast pieces of olefin-dyed paper into the nest of the ants. The ants also throw these pieces of paper out. Did Wilson stop? Of course not. This time he drops oleic acid on a live ant. When the ant enters the nest, another ant takes oleic acid smell and lifts his friend up to the garbage outside the nest, saying, "you are a walking dead." meanwhile, other ant cannot resist at all, like a husband who came home late and drunk as fuck. how can you? Ant smells of obnoxious oleic acid. The only solution for the unfortunate ant is to clean up and re-enter the nest If it has some oleic acid remaining, it might say to his friends, "I carried a dead body in the morning perhaps i smell because of that." If the other ants don’t believe him they may say "wtf are you talking about?" and throw him out of the nest again.
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https://eksisozluk.com/entry/48173088