Mann, J. 1997. Individual differences in bottlenose dolphin infants. Family Systems. 4: 35-49. |
Smolker, R. A., Richards, A. F., Connor, R. C., Mann, J. & P. Berggren. 1997. Sponge-carrying by Indian Ocean bottlenose dolphins: Possible tool-use by a delphinid Ethology. 103: 454-465. |