‘Ants can identify their worst enemy’

A study of the ant species Temnothorax longispinosus has revealed that it can spot its worst enemy and react with appropriate aggression.
The ant colonies are often invaded by slavemaker ants, which steal their pupae. So when the ants spot a slavemaker, they attempt to kill it by biting and stinging.
But the insects do not waste their energy on less threatening intruders

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