From one of the image captions: > Kanzi blowing soap bubbles, demonstrating voluntary breath control, which apes were long said to lack. Aside from the qualit

From one of the image captions: > Kanzi blowing soap bubbles, demonstrating voluntary breath control, which apes were long said to lack. Aside from the quality narrative surrounding captive bonobo research, this demonstration of breath control alone made the long read worthwhile. Completely unexpected.