Progesterone Maternal behaviour Equus caballus Age Factors Acoustics Suckling Time Factors Tonic European quail Maternal behavior Sex Factors Pardosa saltans Coturnix coturnix japonica Maternal effects Gallus gallus domesticus Coturnix Circadian rhythm Japanese quail Vocalization Social Behavior Vertebrata Social Environment Variability Horses Experience Reproduction Genetic Behavioural development Exploratory Behavior Biochemical status Maternal care Egg Yolk Quail Cuticular hydrocarbons Behaviour Influences maternelles Corticosterone Body Weight Behavior Humans Statistics Female Fear Horse Nonparametric Perception Hormones Chronic stress Precocial bird Comportement maternel Human-animal relationship Laterality Arachnids Ultradian rhythm Coturnix coturnix Hybridization Social development Attachment Emotions Social motivation Yolk hormones Rythme circadien Food call Birds Maternal influence Coturnix japonica Androstenedione Spatial behaviour Animal welfare Early experience Male Immobility Response Emotion Welfare Émotivité Melatonin Motor Activity Bird Caille japonaise Feeding activity Quails Animal Newborn Oiseau Selection Synchronization Androgens Animals Testosterone Comportement Learning Prolactin Social behaviour Hen Game bird Stress chronique Incubation Lycosid Stress Ontogenèse