reward article 36 Animals 34 animal 34 physiology 34 nonhuman 30 controlled study 24 learning 24 Bees 22 Reward 22 bee 22 odor 20 smelling 20 male 18 sucrose 18 memory consolidation 16 taste 16 Apis mellifera 14 Male 14 animal behavior 14 animal experiment 14 female 14 honeybee 14 reinforcement 14 long term memory 12 nerve cell plasticity 12 priority journal 12 Association Learning 10 Associative learning 10 Behavior, Animal 10