https://www.selleckchem.com/pr....oducts/cep-18770.htm
During these isolations the signature whistle was produced an average of 42.9% +/- 11.9% of the time. This is consistent with decades of signature whistle research. A group of 10 naïve observers rated the similarity of the different whistle contours. The observers rated the group whistle contour produced by all five dolphins as highly similar (P less then 0.01). Their ratings further showed that the signature whistles of the five dolphins were very different (P less then 0.01). These findings were further supported by discriminant fun