News / Science & Technology

Dolphins Use Whistles to Call Each Other by Name

Three bottlenose dolphins are seen at the Brookfield Zoo in Brookfield, Ill., May 14, 2013.  Researchers say dolphins can call to each other by name through whistling. (Chicago Zoological Society)
Three bottlenose dolphins are seen at the Brookfield Zoo in Brookfield, Ill., May 14, 2013. Researchers say dolphins can call to each other by name through whistling. (Chicago Zoological Society)

Related Articles

Video Killer Whales Attack Dolphins on Japan Coast

Dramatic video shows about 500 dolphins fleeing a pack of orcas, commonly known as killer whales.
VOA News
Dolphins call each other by names, according to a new study.

The study of 200 bottlenose dolphins indicated that they are the only animals other than humans to use individual names, according to the research from the Sea Mammal Research Unit at the University of St. Andrews in Scotland.

In study, co-authors Vincent Janik and Stephanie L. King reported that dolphins have “signature whistles” they use as greetings when meeting up. The researchers say individual dolphins have individual whistles or “names.”

The two researchers recorded the whistles of 12 dolphins and played the whistles back to each dolphin to record their reactions.

According to the study, in eight of 12 cases, the dolphin replied when they heard their own whistle. In two cases, the dolphin responded to the whistle of a dolphin from its own pod--the group of other dolphins it travels with.

The study said none of the dolphins responded to the sound of a dolphin it did not know.

"Here, we show that wild bottlenose dolphins respond to hearing a copy of their own signature whistle by calling back," the researchers say in their study abstract. "Animals did not respond to whistles that were not their own signature. This study provides compelling evidence that a dolphin's learned identity signal is used as a label when addressing conspecifics. Bottlenose dolphins therefore appear to be unique as nonhuman mammals to use learned signals as individually specific labels for different social companions in their own natural communication system."

The study, "Bottlenose Dolphins Can Use Learned Vocal Labels to Address Each Other," was published in Proceedings of the National Academy of Sciences.

You May Like

Video Westgate Mall Attack Survivors Confront Painful Memories

On anniversary of terror attack, survivors discuss how they have coped with trauma they experienced that day More

Iraqi Kurdish Leader: Protect Syrian City

Islamic State fighters are besieging Kobani, also known as Ayn al-Arab, after seizing at least 21 surrounding villages in a major assault against city on Syria's northern border with Turkey More

Video Whaling Summit Votes to Uphold Ban on Japan Whale Hunt

Conservationists hail ruling as a victory, but Tokyo says it will submit revised plans for a whale hunt in 2015 More

This forum has been closed.
Comment Sorting
Comments
     
by: Yoshi from: Sapporo
July 26, 2013 3:22 AM
They also could become whistleblowers to us ??


by: Michael Ambrose
July 24, 2013 7:12 AM
Science Today is an easy to Use App to stay informed on science news, space updates, and reviews. I found this gem over a random Google search. Great for following science news! The App provides real-time scientific industry news and it continuously monitors and adjusts online source lists to include new writers and publications as well as opinion leaders of note.


by: Dan from: Long Beach, Ca
July 23, 2013 5:23 PM
Oh boy...this isn't good. All they need now are thumbs...and that's the end for us.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Migrants Caught in No-Man's Land Called Calaisi
X
Lisa Bryant
September 19, 2014 5:04 PM
The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching Europe. And for those forunate enough to reach a place like Calais, France, only find that their problems aren't over. Lisa Bryant has the story.
Video

Video Migrants Caught in No-Man's Land Called Calais

The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching Europe. And for those forunate enough to reach a place like Calais, France, only find that their problems aren't over. Lisa Bryant has the story.
Video

Video Westgate Siege Anniversary Brings Back Painful Memories

One year after it happened, the survivors of the terror attack on Nairobi's Westgate Shopping Mall still cannot shake the images of that tragic incident. For VOA, Mohammed Yusuf tells the story of victims still waiting for the answer to the question 'how could this happen?'
Video

Video Militant Assault in Syria Displaces Thousands of Kurds

A major assault by Islamic State militants on Kurds in Syria has sent a wave of new refugees to the Turkish border, where they were stopped by Turkish border security. Turkey is already hosting about 700,000 Syrian refugees who fled the civil war between the government and the opposition. But the government in Ankara has a history of strained relations with Turkey's Kurdish minority. Zlatica Hoke reports Turkey is asking for international help.
Video

Video CERN Accelerator Back in Business

The long upgrade of the Large Hadron Collider is over. The scientific instrument responsible for the discovery of the Higgs boson -- the so-called "God particle" -- is being brought up to speed in time for this month's 60th anniversary of the European Organization for Nuclear Research, known by its French acronym CERN. Physicists hope the accelerator will help them uncover more secrets about the origins of the universe. VOA’s George Putic reports.
Video

Video Whaling Summit Votes to Uphold Ban on Japan Whale Hunt

The International Whaling Commission, meeting in Slovenia, has voted to uphold a court ruling banning Japan from hunting whales in the Antarctic Ocean. Conservationists hailed the ruling as a victory, but Tokyo says it will submit revised plans for a whale hunt in 2015. Henry Ridgwell reports from London.
Video

Video Russian Economy Reeling After New Western Sanctions

A new wave of Western sanctions is hitting Russia’s economy hard. State-owned energy firms continue to bleed profits and Russia’s national currency plunged to a new low this week after the U.S. and the European Union announced new sanctions to punish Russia's aggressive stance in eastern Ukraine. But as Mil Arcega reports, the sanctions could also prove costly for European and American companies.
Video

Video Belgian Researchers Discover Way to Block Cancer Metastasis

Cancer remains one of the deadliest diseases, despite many new methods to combat it. Modern medicine has treatments to prevent the growth of primary tumor cells. But most cancer deaths are caused by metastasis, the stage when primary tumor cells change and move to other parts of the body. A team of Belgian scientists says it has found a way to prevent that process. Zlatica Hoke has more.
Video

Video Mogadishu's Flood of Foreign Workers Leaves Somalis Out of Work

Unemployment and conflict has forced many young Somalians out of the country in search of a better life. But a newfound stability in the once-lawless nation has created hope — and jobs — which, some say, are too often being filled by foreigners. Abdulaziz Billow reports from Mogadishu.
Video

Video A Dinosaur Fit for Land and Water

Residents and tourists in Washington D.C. can now examine a life-size replica of an unusual dinosaur that lived almost a hundred million years ago in northern Africa. Scientists say studying the behemoth named Spinosaurus helps them better understand how some prehistoric animals adapted to life on land and in water. The Spinosaurus replica is on display at the National Geographic museum. VOA’s George Putic has more.
Video

Video Iraqi Kurdistan Church Helps Christian Children Cope find shelter in churches in the Kurdish capital, Irbil

In the past six weeks, tens of thousands of Iraqi Christians have been forced to flee their homes by Islamic State militants and find shelter in churches in the Kurdish capital, Irbil. Despite U.S. airstrikes in the region, the prospect of people returning home is still very low and concerns are starting to grow over the impact this is having on the displaced youth. Sebastian Meyer reports from Irbil on how one church is coping.
Video

Video NASA Picks Boeing, SpaceX to Carry Astronauts Into Space

The U.S. space agency, NASA, has chosen Boeing and SpaceX companies to build the next generation of spacecraft that will carry U.S. astronauts to the International Space Station by the year 2017. The deal with private industry enables NASA to end its dependence on Russia to send space crews into low Earth orbit and back. Zlatica Hoke has more.
Video

Video Future of Ukrainian Former President's Estate Uncertain

More than six months after Ukraine's former President Viktor Yanukovych fled revolution to Russia, authorities have yet to gain control of his palatial estate. Protesters occupy the grounds and opened it to tourists but they are also refusing to turn it over to the state. VOA's Daniel Schearf reports from Mezhigirya, just north of Kyiv.


Carnage and mayhem are part of daily life in northern Nigeria, the result of a terror campaign by the Islamist group Boko Haram. Fears are growing that Nigeria’s government may not know how to counter it, and may be making things worse. More

AppleAndroid