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Animal Behavior

Kissing Behavior Social Behavior Chimpanzees Monogamy Kissing Sleep Patterns Alcohol Metabolism Social Interactions Canids Tool Use Reproductive Success Tool Use in Animals Social Bonding Defensive Coloration Self-Medication Mating Systems Ant Behavior Rhythm Perception Vocal Learning Facial Muscles Flocking Dynamics Alcohol Ingestion Neurology Primates Paternal Investment Social Structures Cognition Communication Domestication Homosexuality in Animals Human Behavior Communication Signals Pair Bonds Same-Sex Behavior

Chimp Drums With Tools While Vocalizing, Offering Clues to Music’s Origins

The finding gives scientists a rare, data-rich view of how tool use may carry emotion from voice into sound.

Major Review Finds Same-Sex Sexual Behavior Common in Primates, Linked to Social and Environmental Pressures

Jellyfish and Sea Anemones Without Brains Shown to Sleep

Humans Rank Seventh in New Mammal Monogamy Study, Below Beavers and Above Meerkats

Study Traces Primate Kissing to a Common Ape Ancestor 16–21 Million Years Ago

PNAS Study Links Chimp Territorial Killings to Short-Term Reproductive Gains

Female Mountain Gorillas Use Long-Term Bonds to Navigate Group Transfers

Wild Orangutans Nap to Offset Sleep Lost to Social Nesting

Chimpanzees Catch Yawns From Android Head