Citation: Meerkats have ability to distinguish different voices (2011, October 13) retrieved 18 August 2019 from https://phys.org/news/2011-10-meerkats-ability-distinguish-voices.html The new study, led by Dr. Simon Townsend from the University of Zurich, looked at a group of wild meerkats living in the Kalahari Desert in South Africa. To test the possibility of vocal recognition, they conducted an experiment using simple audio playback.In the meerkats foraging areas, the researchers placed two audio speakers to play recordings of the staccato calls that the meerkats make while foraging. It is believed that these calls work to keep the group of foraging animals together and let each other know an individual’s location.They began by playing a call from one of the members of the group from one speaker. They repeated this later with another member’s voice from the other speaker. But it was the next part of the experiment that drew the awareness of the meerkats. The call of one meerkat was played from the first speaker and within seconds was played from the other speaker on the other side of the foraging area.This caused the foraging meerkats to stop what they were doing. As if they knew that something was wrong. They were able to identify that there was no way the same voice could be coming from two different locations. This shows the researchers that while the calls made by the animals are similar, the tone and voice of each meerkat is different and the animals are able to identify the difference.This study was the first to demonstrate vocal recognition in a non-primate animal species and the researchers note that this ability may be more widespread than originally thought, especially in animals that live in social groups. Meerkat. Taken in Victoria, Australia in February 2009. Image: Fir0002/Flagstaffotos. Under GNU Free Documentation License. via Wikipedia. Explore further (PhysOrg.com) — Vocal recognition is widespread in primates but a new study, published in Biology Letters, provides evidence that it may not be limited to humans and primates. The ability to recognize the voice of another may be more widespread in the animal community than previously thought. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. © 2011 PhysOrg.com Tradition explains why some meerkats are late risers More information: A simple test of vocal individual recognition in wild meerkats, Biology Letters, Published online before print October 12, 2011, doi:10.1098/rsbl.2011.0844AbstractIndividual recognition is thought to be a crucial ability facilitating the evolution of animal societies. Given its central importance, much research has addressed the extent of this capacity across the animal kingdom. Recognition of individuals vocally has received particular attention due, in part, to the insights it provides regarding the cognitive processes that underlie this skill. While much work has focused on vocal individual recognition in primates, there is currently very little data showing comparable skills in non-primate mammals under natural conditions. This may be because non-primate mammal societies do not provide obvious contexts in which vocal individual recognition can be rigorously tested. We addressed this gap in understanding by designing an experimental paradigm to test for individual recognition in meerkats (Suricata suricatta) without having to rely on naturally occurring social contexts. Results suggest that when confronted with a physically impossible scenario—the presence of the same conspecific meerkat in two different places—subjects responded more strongly than during the control, a physically possible setup. We argue that this provides the first clear evidence for vocal individual recognition in wild non-primate mammals and hope that this novel experimental design will allow more systematic cross-species comparisons of individual recognition under natural settings.
In a decision that is likely to break many hearts, The Lunchbox, the film that won over critics and your average film buffs alike, has not been picked as India’s official pick for the Oscar. Instead, debut feature filmmaker Gyan Correa’s Gujarati film The Good Road has been chosen to represent India in the best foreign film category at the Academy Awards. It is said to be the first Gujarati film to have made it.‘It was a unanimous decision to select The Good Road, which is a movie produced by the National Film Development Corporation,’ renowned filmmaker Goutam Ghose, who headed the selection committee appointed by the Film Federation of India, said. The movie left behind 21 other Oscar contenders, including strong films like The Lunchbox, Bhaag Milkha Bhaag, English Vinglish, Vishwaroopam, among others.
Anurag Kashyap said he is happy that the festival films are doing well commercially as well. ‘I think the myth that the festival films don’t work commercially has changed. This myth is thing of the past now its good the audience has changed and the credit goes to the audience,’ Kashyap said at the 16th MAMI film festival where he presented his Black Friday. Directed by Kashyap, Black Friday featured Kay Kay Menon, Nawazuddin Siddiqui among others.
Kolkata: Noted scholar and former finance minister of the Left Front government in West Bengal, Ashok Mitra, today passed away in a city hospital. He was 90 and his wife had passed away 10 years ago.Mitra was admitted in the hospital almost a month back with complaints of diarrhoea and later developed respiratory problems.A prolific writer of several books, Mitra, also an eminent economist, penned several columns in newspapers on social and economic issues.He was appointed as the finance minister in the Left Front rule and held the portfolio from 1977 to 1987.Prior to that, he was the Chief Economic Adviser to the Central government from 1970 to 1972.
Politics and films seldom mix, however in one of the firsts for the Indian film fraternity, Former Union Minister and a vibrant literary enterprise in his leisure time, Kapil Sibal has penned yet another 5 beautiful numbers including an item song and a Qawwali for a commercial gripping romantic political Bollywood potboiler that will hit theatres this year end apart from marking his debut as a Bollywood lyricist for the aforesaid film.On Saturday evening, the capital was witness to a gathering of friends, family and fans of the very illustrious and multi-faceted lawyer-politician, when his latest B-town venture, Zainab- A Celebration Of Humanity, was announced with much fanfare in the city in the presence of Jimmy Shergill, Lalit Pandit, and others. Jay Bhanushali seamlessly conducted the discussion and anchored the event which was hosted for a selective gathering at Imperial Hotel, in the Capital. The event encompassed an item song showcase and unveiling of the film poster.
England bowler James Anderson ripped
Kolkata: The state government has blamed Metro Railway for the incident of fire that took place on Thursday in an air-conditioned rake near Maidan station.On Friday, a meeting was held at Kolkata Police headquarter Lalbazar with state Fire minister Sujit Bose, officials from Kolkata Police and officials from the Fire department, where it was decided that Metro Railway will be issued a notice in connection with the incident. If any flaw or negligence is found on their part, action will be taken accordingly. Also Read – Rain batters Kolkata, cripples normal lifeAccording to sources, a high-level inquiry has already been ordered by the Metro Railway in this regard. However, the Fire department will also inquire about the matter. Metro Railway will be asked to furnish details of the fire safety management system installed in the rakes. They have also been asked to inspect the passenger safety systems which should be maintained strictly. Bose alleged on Friday that the incident has happened due to the negligence of Metro Railway. He said: “No one can deny the fact that there was negligence on part of Kolkata Metro. It needs to be looked into.” Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe Director General (DG) of Fire Jag Mohan stated that after Metro Railway provides them the necessary information mentioned in the notice, the Fire department will probe the matter. Fire department officials may also check the fire safety management system to make sure that the installed machineries are in working condition. “We are going to issue a notice to Metro Railway asking for the fire safety and life safety system details. After getting the details we will probe whether the systems are working properly or not. If any irregularity is noticed then action will be taken accordingly,” said the DG. During the fire on Thursday, several passengers had alleged that the motorman of the rake had locked the door between the passenger coach and the motorman’s cabin and left the rake. According to Metro Railway guideline, in case of an emergency passengers should be evacuated using the front door of the motorman’s cabin. But on Thursday, passengers were evacuated using the motorman’s entry as there was no ladder which could be used at the front door. Though Metro authorities claimed that the rescue operation was started within 20 minutes, passengers stated that the claim is not true. They were evacuated by the police personnel. Before the arrival of police, a few passengers had managed to break the window glasses to get out of the coach which was on fire. Apart from Thursday’s incident, police and Fire department officials also discussed about taking steps for better coordination between the police and Fire department during emergency situations. It was also mentioned that during a distress call, fire tenders should be given free passage to reach the incident spot as early as possible. On Thursday, Metro Railway passengers faced a tremendous ordeal after fire broke out inside an air-conditioned rake of a Dum Dum bound train just before entering Maidan station at around 5 pm. Smoke was detected inside the compartment just next to the motorman’s cabin, soon after the train left Rabindra Sadan. The train came to a halt inside the tunnel at a distance of around 50 metres from Maidan station. A number of passengers were injured and were admitted at SSKM Hospital.
Kolkata: The Kolkata Police Thursday claimed to have busted a cricket-betting racket in the city by arresting four people and seizing over Rs 1 crore from them. Acting on a tip-off, a team of Detective Department officers conducted raids at 12 places in the city, a senior officer said. The money was seized from four places under Burrabazar Police Station and Posta Police Station area, he said, adding that four people have been arrested so far. “Raids are still being conducted at different places under Bowbazar, Jorabagan, Burrabazar and Posta Police Station areas,” he said.