"It seems one dolphin can call another specifically by mimicking the distinct whistle of that other dolphin. "These whistles actually turned out to be names. They're abstract names, which is unheard of in the animal kingdom beyond people.""

"Professor Parncutt said one of the most compelling arguments is that music is based on ‘motherese’, a universal form of sonic and gestural communication between mothers and infants, which probably emerged between one and two million years ago as brain size increased and the gestation period of humans shortened. As infants became increasingly fragile, mother-infant communication became increasingly important for survival..."