Female Bottlenose Dolphins Use "Baby Talk" With Their Calves
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When it comes to brainpower, bottlenose dolphins are second only to humans. The intelligent animals are known to use tools, help fellow dolphins in distress, and even prepare their food to make it more palatable. Now, a new study has found that just like humans, dolphin moms change their voices when "talking" to their young ones.
Every bottlenose dolphin has a unique whistle. Similar to a human name, it allows them to identify themselves when communicating with other dolphins. But researchers at Florida's Sarasota Dolphin Research Program found that female dolphins alter their signature sound when they are around their calves.
Marine biologist Laela Sayigh first noticed dolphins using "motherese," or baby talk, in 2009. However, the researcher did not get an opportunity to investigate it further until recently. For the study, Sayigh and her team analyzed audio recordings of 19 female dolphins with and without calves. The sounds were captured during catch-and-release health checks of dolphins in Sarasota Bay from 1984 to 2018. The scientists randomly selected 20 whistles from each individual. They found that the mothers used a wider range of pitches around their calves. They were either higher than their regular whistles or slightly lower.
The researchers revealed their findings in the journal Proceedings of the National Academy of Sciences on June 16, 2023. They are unsure why dolphins change their voices when talking to their offspring. In humans, the higher pitch is believed to hold the infant's attention and develop their vocal skills.
But dolphin calves establish their unique calls by age two. Hence, it is unlikely that the mother is teaching them how to pronounce their "name." Sayigh speculates that the pitch change helps the calves identify the whistles specifically directed at them, strengthening the bond between mother and child.
The researchers say that the purpose of using "motherese" may be different in humans and dolphins. However, the study could help scientists understand the evolution of language in vocal species, including humans.
Resources: Science.org, theguardian.com, cbsnews.com
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39 Comments
noce7 monthsbut I LOVE DOLPHIN- noce7 monthsI'm still not sure its real
hannahhelderman7 monthsthis is adorable the way they change there tone around there baby , I wonder how protective are they of there baby around other dolphins?
brittan8 monthshi i am here in 2024 reading this for a sceince progect but its cool\- brittan8 monthsim doing it for a sceince progecttt
- brittan8 monthsthis articlee is a so fun but eeducatiing
bidiwukujewy8 monthsIt help me learn more about dolphin
cricketman1239 monthsI love dolphins and as soon as I saw them on the cover I went straight to read it
al13659 monthsThese animals are my favorite animals! I have to do a paper on dogo news, so this fits.
derek4279 monthslove them
