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Deep inside an ant nest, some of the youngest members are primed to die for the group. When infection strikes, these baby ants do not just fall sick and fade away. They actively trigger their own ...

Sick young ants release a smell to tell worker ants to destroy them to protect the colony from infection, scientists said Tuesday, adding that queens do not seem to commit this act of self-sacrifice.

Young, infected Lasius neglectus ants will send out an altruistic "kill me" signal to worker ants, a new study finds, as part of a strategy to keep deadly pathogens from spreading through the colony.

Source: Princeton University Press/with permission. Ants are fascinating and remarkably intelligent insects who live in complex social groups called colonies. 1,2 When I first learned about ant expert ...