For a caterpillar that lives surrounded by ants, there are two ways of avoiding attack: going unnoticed or offering the ants a sugary treat in exchange for protection. This is the main conclusion of a study funded by FAPESP (São Paulo Research Foundation) and published in Ecological Entomology.
Click here for original story, Caterpillars mimic leaves or offer rewards for protection by ants
Source: Phys.org