It turns out that ants are capable of making career moves.Computer tracking of ants shows that colonies have three main occupations: nursing the queen, cleaning, and foraging for food. Younger ants typically stay near the queen, but as they get older, they make the transition to foraging. This transition with regards to age was an exciting discovery, giving more insight into ant behavior.
Source:
http://www.nature.com/news/tracking-whole-colonies-shows-ants-make-career-moves-1.12833
