TIL that a small percentage (1-2%) of honeybees in a given colony will specialize as undertakers; they function to prevent disease by removing corpses from the hive

https://en.wikipedia.org/wiki/Social_immunity
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https://www.reddit.com/r/todayilearned/comments/1gvs4na/til_that_a_small_percentage_12_of_honeybees_in_a/