Share It’s not just humans who have trouble making amends—Earth’s 20 quadrillion ants aren’t quick to forgive, either. Ants primarily rely on their fine-tuned olfactory sense to differentiate between the smell of members of their own family (i.e. safe ants) and ants from other colonies. A familiar scent while out foraging, for example, allows a worker ant to know which nearby ants are there to help, and which may be rivals hunting for the same resources. But new research from evolutionary biologists at Germany’s University of Freiburg indicates ants don’t…
