Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

7/23/2013 (2 years ago)

Catholic Online (www.catholic.org)

Dolphins live in environment where they need an efficient system to stay in touch

Since dolphins live in an environment where they need an efficient system to stay in touch, scientists have uncovered evidence that dolphins call each other by "name." These marine mammals use a unique whistle to identify each other, researchers claim.

The recent study was the first time that the animals response to being addressed by their 'name' has been studied.

The recent study was the first time that the animals response to being addressed by their "name" has been studied.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

7/23/2013 (2 years ago)

Published in Green

Keywords: Dolphins, sound, communication, study. groups, language


LOS ANGELES, CA (Catholic Online) - Researchers at the University of St. Andrews in Scotland says they have discovered that when the dolphins hear their own call played back to them, they respond.

According to a study published in the Proceedings of the National Academy of Sciences, Dr. Vincent Janik, from the university's Sea Mammal Research Unit, says "(Dolphins) live in this three-dimensional environment, offshore without any kind of landmarks and they need to stay together as a group."

It's long been theorized that dolphins use distinctive whistles in much the same way that humans use names. Previous studies found that these calls were used frequently. Dolphins in the same groups were able to learn and copy the unusual sounds.

The recent study was the first time that the animals response to being addressed by their "name" has been studied.

Researchers recorded a group of wild bottlenose dolphins, capturing each animal's signature sound and then played these calls back using underwater speakers.

"We played signature whistles of animals in the group, we also played other whistles in their repertoire and then signature whistles of different populations - animals they had never seen in their lives," Janik explains.

Individual dolphins only responded to their own calls, by sounding their whistle back.

The team believes the dolphins are displaying human-like behavior, i.e., when they hear their name, they answer.

Janik says that this skill probably came about in order to help the animals to stick together in a group in their vast underwater habitat.

"Most of the time they can't see each other, they can't use smell underwater, which is a very important sense in mammals for recognition, and they also don't tend to hang out in one spot, so they don't have nests or burrows that they return to," Janik said.

The researchers believe this is the first time this has been seen in an animal, although other studies have suggested some species of parrot may use sounds to label others in their group.

Janik notes that understanding how this skill evolved in parallel in very different groups of animals could tell us more about how communication developed in humans.

---


Pope Francis: end world hunger through 'Prayer and Action'


Copyright 2015 - Distributed by THE CALIFORNIA NETWORK

Pope Francis Prayer Intentions for February 2016
Universal:
That prisoners, especially the young, may be able to rebuild lives of dignity.
Evangelization: That married people who are separated may find welcome and support in the Christian community.



Comments


More Green

You won't believe how many Americans actually care about global warming! Watch

Image of While a threat to humanity, global warming is of very low concern to the majority of most Americans.

By Catholic Online (CALIFORNIA NETWORK)

Climate change - or global warming, has a wide range of apocalyptic possibilities - drought, fire, famine and government collapse are promised by the world's soaring temperatures. However, according to a recent poll - Americans just do not care, or express much concern ... continue reading


NOAA caught adjusting temperature data to make global warming worse! But why did they do it? Watch

Image of NOAA: And we would have gotten away with it if not for you pesky skeptics!

By Marshall Connolly, Catholic Online (CALIFORNIA NETWORK)

Global warming is probably the most serious issue facing the world today. If global temperatures are spiking, then the world as we know it will change. Even the U.S. military considers global warming to be a major threat to national security. But what if the climate ... continue reading


Here's what a plague of locusts looks like (PHOTOS) Watch

Image of When grasshoppers swarm, they become known as locusts. Their colors and behaviors change dramatically.

By Marshall Connolly, Catholic Online (CALIFORNIA NETWORK)

Amid news that the largest locust swarm in five decades is devouring crops in Argentina, some people have wondered just what such a thing looks like. Here's what a plague of biblical proportions looks like.  [media id="17873"][media id="17875"][media ... continue reading


Will the symbolic Doomsday Clock move closer to the fatal end? Watch

Image of Doomsday Clock is currently set three minutes to 12.

By Kenya Sinclair (CALIFORNIA NETWORK)

The Doomsday Clock is a symbolic visual of the world's impending doom. Once the clock strikes midnight, the world as we know it will come to an apocalyptic halt -all of our own doing. LOS ANGELES, CA (Catholic Online) - The Bulletin of the Atomic Scientists (BAS) is ... continue reading


El Nino DISASTER looms for California: 'ATMOSPHERIC RIVER EVENT' possible, could be followed 'VERY LOW SNOW LEVELS' Watch

Image of The ARkstorm scenario has been modeled in California. In 1862, an actual ARkstorm hit the state. Similar, but less destructive storms have hit in 1938, 1968, and 1986.

By Marshall Connolly, Catholic Online (CALIFORNIA NETWORK)

A long range weather forecast for California predicts the state may be hit by a major El Nino storm next weekend. That storm could be followed by abnormally cold temperatures that could put snow on the valley floor, a rare event for the region. UPDATE: Wednesday, 1/27, ... continue reading


SHOCKING reality facing oceans: Plastic pollution 'equivalent to dumping the contents of one garbage truck into the ocean every minute' Watch

Image of The ocean is already full of plastic -but more is on its way (LiveScience).

By Monique Crawford (CALIFORNIA NETWORK)

Everyone has heard of the spread of plastic pollution in our oceans -but how many of us realize just how serious the situation really is? According to the World Economic Forum, the amount of plastic currently dumped into our oceans each year is the equivalent of one ... continue reading


Global warming devours lake twice the size of Los Angeles Watch

Image of A fisherman displays his license. Without any water or fish, his livelihood has evaporated. Bolivia has declared a national disaster.

By Marshall Connolly, Catholic Online (CALIFORNIA NETWORK)

Climate change may be a debate topic in the United States, but for people who have been impacted by warming weather, it is a harsh reality. This is painfully evident in Lake Poopo, Bolivia, that nation's second-largest lake, which has now dried up to just 2 percent of ... continue reading


NOAA: 2015 officially hottest year on record. -- Skeptics just insist all scientists are lying Watch

Image of According to NASA and NOAA, 2015 was the hottest year on modern record.

By Marshall Connolly, Catholic Online (CALIFORNIA NETWORK)

More evidence. There's more proof the planet is warming, and it's not even a debatable subject anymore. According to NOAA, 2015 is the hottest year on record, by far. LOS ANGELES, CA (California Network) - Last year was the hottest recorded year since record-keeping ... continue reading


Hey California, love the weather? There's a nasty surprise coming for Californians Watch

Image of A luxury home collapses in California in March, 1998.

By Marshall Connolly, Catholic Online (CALIFORNIA NETWORK)

Californios have been pleasantly surprised by the El Nino rains this year. The rain hasn't been overwhelming, and temperatures have been mild.  Windows can often be left open all night in many places. There's plenty of snow on the slopes, so skiing is on. It's a ... continue reading


BACK TO LIFE MIRACLE: Organisms, frozen for 30 years, successfully revived and brought back to life Watch

Image of Frozen, tardigrades enter a state called cryptobiosis. Their metabolic processes shut down and they show no visible signs of life.

By Catholic Online (CALIFORNIA NETWORK)

In a remarkable feat worthy of Rip Van Winkle, two tardigrades - also known as "Waterbears" and "moss piglets" were successfully revived after being frozen or 30 years. One survived for only a few days - the other thrived and was able to hatch further eggs. LOS ... continue reading


All Green News

Newsletters

Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Subscribe to Catholic OnlineYouTube Channel

the FEED
by Catholic Online

Daily Readings

Reading 1, First Kings 8:22-23, 27-30
22 Then, in the presence of the whole assembly of Israel, Solomon stood ... Read More

Psalm, Psalms 84:3, 4, 5, 10, 11
3 Even the sparrow has found a home, the swallow a nest to place its ... Read More

Gospel, Mark 7:1-13
1 The Pharisees and some of the scribes who had come from Jerusalem ... Read More

Saint of the Day

Saint of the Day for February 9th, 2016 Image

St. Apollonia
February 9: St. Apollonia, who died in the year 249, was ... Read More