I've never given such a bad review before, and I don't do so lightly, but this article is simply awful.
It gets some simple facts about ant biology wrong—such as referring to ants as "mother" and "son". This is untrue, as all ants are, in effect, siblings, sharing only a single mother in the queen. The ants labelled as mothers are clearly not queens.
It seems that the Daily Mail reporter (who, perhaps wisely, declined to receive attribution for this piece of "journalism") has little-to-no understanding of ant biology, and basically made it up as they went along, based entirely on their own interpretation of the images.
No, she doesn’t. She isn’t its mother, and this is almost certainly not a display of affection