As if we needed another reason to love these playful marine mammals!
According to National Geographic, these specialized ways of communication with babies are rare in the animal world. So far, scientists have found the patterns in squirrel monkeys, rhesus macaques and zebra finches.
Dolphins, known for their intricate system of nonverbal language, seemed like ideal candidates for an offspring vocalization study. The study began in the 1980s and focused on a group of bottlenose dolphins living in Sarasota Bay, Florida. At the time, scientists already knew dolphins used unique vocal patterns to communicate with one another but wanted to determine if mothers shifted them around their calves.
So, over the course of three decades, researchers recorded the whistles of 19 mother dolphins using a microphone and determined that females produced “signature whistles with higher maximum frequencies when they were recorded with their own dependent calves vs. not with them.”The researchers expressed excitement over these findings and believe it’s just the beginning of understanding the significance of these connections between the species.
“Our data add to the growing body of evidence that dolphins provide a powerful animal model for studying the evolution of vocal learning and language,” said the
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