1.   He also said he had no doubt the whales heard this concert.

2.   Hung from the submerged nets, the alarms ping every three seconds on a frequency the whales can hear but the fish cannot.

3.   The suction cups will allow them to listen to the noises whales hear underwater and to monitor the clicking speech of the whales.

4.   LaPuzza said the long-term study is designed to increase knowledge about how and what whales hear, and the effects of noise in their environment.

5.   Yachts were silent, so whales could not hear them coming, unlike cargo ships.