I'm going to hazard a speculative answer with poor evidence: love.
The ants love one another, as shown by their child-rearing, grooming, playing, the "antennating" mentioned in the article, collective defense, and deliberate handling of their dead.
We don't understand their language, but I have a certain faith that ants experience a very similar kinship for their sisters as we. If they were strictly-rational robots then why would they show these behaviors?
The ants love one another, as shown by their child-rearing, grooming, playing, the "antennating" mentioned in the article, collective defense, and deliberate handling of their dead.
We don't understand their language, but I have a certain faith that ants experience a very similar kinship for their sisters as we. If they were strictly-rational robots then why would they show these behaviors?