Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

7/23/2013 (1 year 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 (1 year 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'


2014 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for August 2014
Refugees:
That refugees, forced by violence to abandon their homes, may find a generous welcome and the protection of their rights.
Oceania: That Christians in Oceania may joyfully announce the faith to all the people of that region.



Comments


More Green

Glacial retreat may halt Chinese dam projects Watch

Image of Tibetan glaciers supply hundreds of millions of people with water, and feed into rivers that run through China, India and much of Southeast Asia.

By Catholic Online (NEWS CONSORTIUM)

The Tibetan plateau has become warmer over the past 50 years than at any stage in the last millennia, a Chinese newspaper reported. LOS ANGELES, CA (Catholic Online) - This report, published by the Chinese Academy of Sciences' Institute of Tibetan Plateau Research, ... continue reading


Humans are doing WHAT? Watch

Image of A glacier in the Alps, one of the largest in the world.

By Catholic Online (NEWS CONSORTIUM)

A new study released on August 14 reports that man-made greenhouse gas emissions are the dominant cause of glacial melting in the Alps and Andes mountains. LOS ANGELES, CA (Catholic Online) - The study, published in the journal Science, reveals that human emissions ... continue reading


NEW SPECIES: 'Graveyard' reveals 47 skeletons of new species of pterosaur Watch

Image of What separates the latest find from others of their species is that the pterosaur Caiuajara dobruskii had a large bony crest on the top of its head that changed from being small when it was young, to large and steep in adults.

By Catholic Online (NEWS CONSORTIUM)

A colony of previously unknown flying reptiles that lived around a desert lake in Brazil around 100 million years ago have been uncovered by scientists. The fossilized remains of at least 47 pterosaurs with wingspans ranging from two to eight feet, were ... continue reading


The cute and entertaining manatees may have a change of status: From 'endangered' to 'threatened' Watch

Image of Reaching weights as high as 3,500 pounds, manatees make a home where there are plentiful sea grasses and freshwater from estuaries and slow-moving rivers.

By Catholic Online (NEWS CONSORTIUM)

Visitors to Florida frequently come across blubbery animals called manatees. Resembling walruses, the comical creatures can be found along the heavily populated Florida coast. Now - there is a movement to reclassify the manatees status from "endangered" to the ... continue reading


Catholic parish accused of animal cruelty, remains silent Watch

Image of It is very likely this is a distressing event for the animal and while it may have been viewed favorably in the past, such activities are increasingly frowned upon today. The lack of statement from the parish is disconcerting. (Image via Jordan Turner.)

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

An incredible commotion is brewing around a parish church in Stephensville, Wisconsin where activists have targeted a 44-year-old event that they say is cruel to animals. St. Patrick's Church holds an annual pig wrestling event were pigs are allegedly wrestled and ... continue reading


DOOMSDAY PROPHECY: 'There will be no water by 2040 if we keep doing what we're doing today' Watch

Image of Hydroelectric energy needs are even larger than those demanded by agriculture, researchers said.

By Catholic Online (NEWS CONSORTIUM)

Researchers from Denmark's Aarhus University, Vermont Law School and the U.S.-funded Center for Naval Analyses Corporation have come out with a chilling prophecy. Due to heightened demand for drinking water and energy needs, "There will be no water by 2040 if ... continue reading


What happened to all the bugs? Insect population is down by 45 percent in just 35 years Watch

Image of We rarely think of insects as being little more than everyday pests. Flies interrupting a breezy day, ant invading a picnic, crickets disrupting the quiet of an early evening.

By Catholic Online (NEWS CONSORTIUM)

We rarely think of insects as being little more than everyday pests. Flies interrupting a breezy day, ant invading a picnic, crickets disrupting the quiet of an early evening. There are less bugs to worry about these days -- and scientists say this is good ... continue reading


Beware of fluffy! Those scary dinosaurs may have actually been quite comical to look at Watch

Image of Most dinosaurs may have had feathers, a new study suggests.

By Catholic Online (NEWS CONSORTIUM)

The discovery of several 150-million-year-old fossils in Siberia indicates that a majority of dinosaurs were either covered with feathers or had the potential to grow feathers, a new study suggests. LOS ANGELES, CA (Catholic Online) - Until this study-published in ... continue reading


California drought likely to worsen as El Nino observed weakening Watch

Image of A sign intended to build public support for water rights for farmers now has a new significance.

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

Bad news for California is about to get worse. The state, wracked with drought, is eagerly anticipating the formation of a strong El Nino event in the Pacific, which would bring significant rainfall to the region. However, the El Nino may not develop as strongly as ... continue reading


Bats are the super animals, science says! New study reveals that not only can these flying pest eaters see sound, but they can also see invisible light Watch

Image of Bats can see with polarized light, and may use it to navigate with, a new study says.

By Catholic Online (NEWS CONSORTIUM)

Polarized light may be a useful tool for bats to navigate, and the greater mouse-eared bat-Myotis myotis-is the first mammal known to navigate using polarized light. LOS ANGELES, CA (Catholic Online) - Polarized light is light waves that are parallel to each other ... continue reading


All Green News

Newsletters

Newsletter Sign Up icon

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

Daily Readings

Reading 1, Ezekiel 34:1-11
1 The word of Yahweh was addressed to me as ... Read More

Psalm, Psalms 23:1-3, 3-4, 5, 6
1 [Psalm Of David] Yahweh is my shepherd, I lack ... Read More

Gospel, Matthew 20:1-16
1 'Now the kingdom of Heaven is like a landowner ... Read More

Saint of the Day

Saint of the Day for August 20th, 2014 Image

St. Bernard of Clairvaux
August 20: St. Bernard, Abbot and Doctor of the Church St. Bernard was born ... Read More

Inform, Inspire & Ignite Logo

Find Catholic Online on Facebook and get updates right in your live feed.

Become a fan of Catholic Online on Facebook


Follow Catholic Online on Twitter and get News and Product updates.

Follow us on Twitter