5 trends tracked about this subject — the full history, oldest to newest below.
5 news sources are covering this Science story right now — PULSE is tracking how fast it spreads.
Scientists identify the Likweli, a striking new monkey species with orange lips and a froglike roar, hiding in the DRC forest.
Recent research reveals striking parallels between human and great ape laughter, suggesting deep evolutionary roots in vocal expression.
Recent research indicates that humans and great apes may have shared common laughter patterns for 15 million years.
New research indicates that great apes possess individual thinking styles, challenging existing human models of social intelligence.