1State Key Laboratory of Multi-organ Injury Prevention and Treatment, Key Laboratory of Mental Health of the Ministry of Education, Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong Joint Laboratory for Psychiatric Disorders, Guangdong Provincial Key Laboratory of Psychiatric Disorders, Guangdong Basic Research Center of Excellence for Integrated Traditional and Western Medicine for Qingzhi Diseases, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Psychiatry, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Researchers found positive affective contagion in bumble bees, demonstrating that emotions can transfer between bees visually. This suggests affective contagion is an evolutionarily widespread mechanism in social insects and vertebrates.