"couldnt you say that the meaning of the life of certain ants is to serve their queen" You could say that, but the word "meaning" in this context is not used i

"couldnt you say that the meaning of the life of certain ants is to serve their queen" You could say that, but the word "meaning" in this context is not used in a literal sense, it's expressing something closer to "purpose". The word "meaning", when used literally, applies to communications. It's the thing the communication is supposed to express. An ant's life is not a communication and therefore the word meaning does not apply in a literal sense.