Bottlenose dolphins can call each other by name when they whistle,

making them the only animals besides humans know to recognize such      1. __________

identity information, scientists reported on Monday.

Dolphins communicate as humans by calling each other by name,           2. __________

scientists in Fife reported on Monday.

Scientists have long known that dolphins’ whistling calls including repeated      3. __________

information thought to be their names, but a new study indicates dolphins

recognize these names even when voice cues are removed in the sound.         4. __________

St Andrews University researchers studying in Sarasota Bay off

Florida’s west coast Florida discovered bottlenose dolphins used names

rather than sound to identify each other.

The three-years-study was funded by the Royal Society of London.         5. __________

Dr Vincent Janik, of the Sea Mammal Unit at St Andrews University,

said they conduced the research on wild dolphins.                      6. __________

 “We captured wild dolphins using nets when they came near the

 shore,” he said.

 “Then in the deep water we recoded their whistles before synthesizing         7. __________

 them on a computer with the caller’s voice features removed so that we

have a computer voice of a dolphin.”                                8. __________

“Then we played it back to the dolphins through an underwater speaker

and we found they responded coolly. This showed us that the dolphins       9. __________

know each other’s signature whistle instead just the voice.”                  10. _________

“Now we know they have labels for each other like we do.”

The findings are published in the US journal the Proceedings of the

National Academy of Sciences (PNAS).

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