Cruel ants
Based on a research report published in an eLife journal on November 29 last year, scientists discovered that the mouth fluid of Florida wood ants (Camponotus floridanus) contains chemicals that might help to uniform the aroma of ants in a colony and even affect the growth of their larvae.
To find the molecular content, the researchers had to find a way to collect ant saliva. This task is not easy. Therefore, fluid exchange between ants with each other occurs very quickly and is difficult to predict. Thus, the wait and see method can not be done in this study.