Before revision:  A recent formalism, known as multilayer network analysis , has advanced the study of multifaceted networked systems and offers a novel way to represent and analyse animal behaviour as connected ` layers' of interactions.
After revision:  A recent formalism, known as multilayer network analysis , has advanced the study of multifaceted networked systems in many disciplines. It offers novel ways to study and quantify animal behaviour as connected ` layers' of interactions.