[Comparative characteristics of the spatial hearing in the dolphin, Tursiops truncatus, and in man]. / Sravnitel'nye kharakteristiki prostranstvennogo slukha del'fina Tursiops truncatus i cheloveka.

The paper presents data on the directional selectivity of hearing in the bottlenose dolphin as a function of masking noise angle. It has been shown that the hearing system of dolphins is characterised by sharp lowering of masked thresholds depending on the noise going in the high frequency region. The same effect is shown in man, but not so evidently.