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Goat kids can also develop accents like humans

Washington, Thu, 16 Feb 2012 ANI

Washington, Feb 16 (ANI)): Researchers have found that like human beings, goat kids have the ability to change vocal sounds (vocal plasticity) and develop an accent.


Vocal plasticity is the ability of an individual to modify the sound of their voice according to their social environment.


Humans benefit from an extreme form of vocal plasticity, which allows us to produce a wide range of sounds and accents, but in most other mammals (except, for example, bats and whales) vocalisations were thought to be genetically determined, with very limited flexibility and ability to learn.


Now, a new research from Queen Mary, University of London, has reported the existence of vocal plasticity in goats.


Dr Elodie Briefer and Dr Alan McElligott from Queen Mary's School of Biological and Chemical Sciences investigated genetic and social effects on goat kid calls.he team studied four groups of pygmy goats, who were all full or half siblings. They were recorded during two socially and ecologically distinct periods: at one week old, when they typically stay hidden from predators with their siblings; and at five weeks old, when they form social groups with animals of the same age, known as 'creches'.


The team found that despite their limited vocal repertoire, the calls of goat half-siblings became more similar when they were raised in the same social group together.


"We found that genetically related kids produced similar calls, which is not that surprising. But the calls of kids raised in the same social groups were also similar to each other, and became more similar as the kids grew older. This suggests that goat kids modify their calls according their social surroundings, developing similar 'accents'" Dr Briefer explained.


The existence of vocal plasticity in mammals such as goats reveals a possible early pathway in the evolution of vocal communication, which eventually led to human language and speech.


"The research also highlights the important cognitive abilities that some of our domestic animals possess, and which have remained undetected until now. Improved knowledge of their behaviour and cognition provides essential information for improving animal welfare," Dr McElligott added.


The finding has been described in the journal Animal Behaviour. (ANI)


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