One study found that rats emitted ultrasonic vocalizations when they were subjected to manual somatosensory stimulation, i.e., tickling. The results of this controversial research were published in ...
Times Pets on MSN
Not just humans: 5 animals that laugh, cackle and giggle
Laughter is often called the most human sound. It carries joy, relief, connection, and sometimes even healing. For centuries, ...
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