Young chimpanzees develop distinct vocal patterns, study finds
Research indicates that differences in chimpanzee calls become more pronounced with age.
AI-assisted coverage comparison, editor-supervised · How this was made
Credit: Queen Mary, University of London
Photograph: Phys.org (embedded from source)
What this story says
- Young chimpanzees develop distinct vocal patterns specific to their populations as they mature, according to a study.
- Differences in vocal patterns between chimpanzee groups become more pronounced as the animals grow older.
- Researchers analysed grunts, whimpers, and laughter from infant and juvenile chimpanzees in two separate populations.
- The findings suggest that social interactions and environmental conditions may shape chimpanzee communication, challenging the idea that calls are solely genetic.
Who covered it
Percentages are shares of the 9 outlets carrying a published leaning rating. 5 of the 14 outlets we know ran this story carry no rating and are not counted in them. Coverage measured .
Trust
60/100
Craft
65/100
Hype
45/100
14 sources · methodology
Young chimpanzees develop distinct vocal patterns specific to their populations as they mature, according to a study published in the journal PLOS One. These differences become more pronounced as the animals grow older. Researchers analysed grunts, whimpers, and laughter from infant and juvenile chimpanzees from two geographically separated populations. The findings suggest that social interactions and environmental conditions may contribute to shaping chimpanzee communication, challenging the assumption that chimpanzee calls are inflexible and determined solely by genetics.
Vocal differences sharpen with age
The research provides evidence that population-specific vocal differences become increasingly distinct during chimpanzee development. By focusing on how communication changes over time, the study offers a new perspective on the processes that shape vocal behaviour. While the study does not suggest chimpanzees possess human-like speech, it demonstrates that their vocal development is influenced by more than genetics alone. The findings offer insight into the biological and environmental factors that shape communication in primates and the evolution of complex communication systems.
What the coverage left out
None of the left-rated reports mentioned the study's findings, as no left-rated outlet ran this story. The right-rated digests did not name the specific journal in which the study was published, nor did they identify the researchers involved.
Still developing. We have re-checked which outlets are covering this 5 times, most recently on 6 Sept 2026, 03:15, and will add the sides that appear.
How each side covered it
Our own reading of the reporting listed below, written from the outlets’ articles rather than quoted from them. The reasoning is set out on our methodology page.
Left
0 rated outlets
No outlet rated left has run this story so far. We are still checking, and will say plainly if that does not change.
Centre
6 rated outlets
- Centre-rated reports led on the finding that young chimpanzees develop distinct vocal patterns, or 'accents', as they mature. These reports highlighted that these differences become more pronounced with age. They noted that researchers analysed grunts, whimpers, and laughter from infant and juvenile chimpanzees in two separate populations. The centre-rated outlets also mentioned that the findings challenge the assumption that chimpanzee calls are inflexible and determined solely by genetics, suggesting social interactions and environmental conditions may play a role. Phys.org stated that the work is published in the journal PLOS One and named doctoral researcher Kassandra Giragosian from Queen Mary University of London as the lead. Discover Magazine noted that the study analysed grunts, whimpers, and laughter to uncover these accents. Nautilus suggested the findings could shed light on human language acquisition. Study Finds reported that distress calls remain universal while grunts and laughs diverge by population early on.
Right
3 rated outlets
- Right-rated reports focused on the finding that chimpanzees may have distinct vocal patterns or 'dialects'. They noted that these differences become more apparent as the animals grow older. Tribune India and Times of India mentioned that acoustics of chimpanzees' laughs, grunts, and whimpers revealed these potential dialects. Tribunnews.com suggested that the living environment, social interactions, and individual development may influence how chimpanzees produce sounds. Times of India posed the question, 'Do you understand the “chimpanzee” accent?' and stated that their voices change with age.
Questions about this coverage
- How did the left and right cover Young chimpanzees develop distinct vocal patterns, study finds?
- Of the 9 outlets on this story carrying a published leaning rating, 0% are rated left, 62% are rated centre, 38% are rated right. Those percentages are shares of the rated outlets, not of every outlet that ran it, which was 14. The sections above set out what each side emphasised, in its own terms.
- Is Young chimpanzees develop distinct vocal patterns, study finds left or right?
- Too few of the outlets on this story carry a published leaning rating to say. 9 of them do, and this site does not characterise a field under 12: at that size one newsroom filing moves the share by ten points. The percentages above are the count as it stands.
- Is the coverage of Young chimpanzees develop distinct vocal patterns, study finds biased?
- Young chimpanzees develop distinct vocal patterns, study finds is one event reported by 14 outlets, and this page does not rate the story as biased or unbiased. What it publishes is the spread: which outlets ran it, where named rating organisations place each of them on the spectrum, and what each side chose to lead with. A leaning rating describes an outlet's record over time, not this article, and the two should not be run together.
- Which outlets covered Young chimpanzees develop distinct vocal patterns, study finds?
- 14 that we know of, every one of them listed further up this page with a link to its own report and to what we hold on the publisher. Nothing here is a summary of somebody else's summary: the outlets are named so the original reporting can be read.
- What did the study find about chimpanzee vocalizations?
- A study found that young chimpanzees develop distinct vocal patterns specific to their populations as they mature. These differences become more pronounced as the animals grow older, challenging the idea that their calls are fixed and solely genetic.
- What sounds did the researchers analyse?
- Researchers analysed grunts, whimpers, and laughter from infant and juvenile chimpanzees. This analysis was conducted across two geographically separated populations to identify vocal differences.
- What factors might shape chimpanzee communication?
- Researchers suggest that social interactions and environmental conditions may contribute to shaping how young chimpanzees communicate. This indicates that factors beyond genetics play a role in their vocal development.
Read it at the source
14 outlets, grouped by the leaning a published rating gives them. Every headline links to the original; an underlined outlet name opens our profile of that publisher.
Left
0No outlet in this group ran the story.
Centre
6- Baby chimps develop regional accents, new study finds (opens NewsNation in a new tab)
NewsNation — is NewsNation biased? Our profile of this outlet
- Young Chimpanzees Develop Distinct Vocal Accents That Become Stronger With Age (opens Discover Magazine in a new tab)
Discover Magazine — is Discover Magazine biased? Our profile of this outlet
- Chimps Have Accents, Too (opens Nautilus in a new tab)
- Young Chimps Develop Their Own Accents, New Study Finds (opens sci.news in a new tab)
- Baby Chimpanzees Develop Distinct Regional Accents, Study Finds (opens studyfinds.com in a new tab)
studyfinds.com — is studyfinds.com biased? Our profile of this outlet
- Chimpanzees have accents too, study finds (opens Phys.org in a new tab)
Right
3- Chimpanzees may have dialects: Study - The Tribune (opens Tribune India in a new tab)
Tribune India — is Tribune India biased? Our profile of this outlet
- Do you understand the “chimpanzee” accent? Study finds chimps can have accents too, and their voices change with age (opens Times of India in a new tab)
Times of India — is Times of India biased? Our profile of this outlet
- Don't Guess Wrong! Chimpanzees Actually Have a 'Local Accent,' and They Become Easier to Recognize as They Get Older (opens Tribunnews.com in a new tab)
Tribunnews.com — is Tribunnews.com biased? Our profile of this outlet
Not rated
5- It Turns Out Chimpanzees Have Accents Too. (opens Arkeofili in a new tab)
Arkeofili
- Chimpanzees Also Have 'Language Differences' | Chimpanzees Also Have 'Language Differences' (opens madhyamam.com in a new tab)
madhyamam.com — is madhyamam.com biased? Our profile of this outlet
- New Study Finds Young Chimpanzees Develop Unique Accents (opens themondonews.com in a new tab)
themondonews.com — is themondonews.com biased? Our profile of this outlet
- Chimpanzees may have 'dialects'! Study reveals new details - OrissaPOST (opens Orissa POST in a new tab)
Orissa POST — is Orissa POST biased? Our profile of this outlet
- Chimpanzees Also Have a 'Country Accent', Which Becomes More Apparent as They Grow Older. (opens TUOI TRE ONLINE in a new tab)
TUOI TRE ONLINE — is TUOI TRE ONLINE biased? Our profile of this outlet
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