Challege 3. Cognition, collective behavious and conciousness (Gomez-Marin, Alex; Martínez, Luis M. ; Márquez, Cristina; Valverde, Sergi ; Hernández-García, Emilio ; López, Cristóbal ; Mirasso, Claudio R. ; Castillo, M. Dolores del ; Rocon, Eduardo; Criado-Boado, Felipe