comportement (1) investissement (1) aliment (1) famille (1) conflit (1) Food (1) Agreement (1) Communication (1) States (1) Animal feeding (1) Will (1) Parents (1) Night (1) Negotiation (1) Intention (1) Hypothesis (1) Hunger (1) Honesty (1) Game theory (1) Food (1) Families (1) Comprehension (1) Communication (1) Brothers and sisters (1) Begging (1) Barn owl (1) Animal clutches (1) Will (1) Vocalization (1) States (1)