Table by E O Wilson that shows how as worker ants age they take on different jobs around their nest— first working with eggs and the queen then with other ants then last they forage.
@futurebird is that because they are more mature and capable of those complex tasks, or because they are more expendable due to advanced age, like the Fukushima 50 volunteers?
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The reasoning of those volunteers was different: the expected time until adverse effects was longer than their expected remaining lifespan, so they were likely not to suffer any health issues.
