Those Lemurs got a rhythm. Scientists have been asked questions

Those Lemurs got a rhythm Scientists have been asked questions

The indri lemur, primate with opposable thumbs; short tail; and teddy, round, teddy-like ears. They share a branch of the evolutionary tree with humans, but our trails disappeared about 60 million years ago. However, there is one thing that is very impressive to keep around: Indris is one of the few mammals that sings. Family groups create sieges in the treet trees of their rainforest home in Madagascar; their voices screaming out for miles. These songs - which biologist Andrea Ravignani describes as sounding like a cross between several jamming jazz trumpeters, humpback whales, and screams - are also the same songs that as well as those made by humans to run them with regular, expected rhythms.

Of course, the rhythm of indri can be a the same as a human rhythm, says Ravignani, who studies bioacoustics at the Max Planck Institute for Linguistics. He is part of an international team of researchers who recently submitted a paper Conventional biology the first to run a rhythm in lemurs.

Studying how, and when, lemurs' songs use a rhythmic structure would help researchers understand musicality in humans, whose evolutionary purpose remains a mystery. Symptoms such as color vision, bipedal vision, and prolonged childhood have been due to evolutionary stress that was favorable to those who had certain genes. But music, which is so scattered across human cultures, is unexplained. “As a music lover I love the beauty of music,” says Ravignani. "As a biologist, I wonder why we have not yet found an answer when many other things are so evident in human evolution."

The origin of the rhythm - and even the term itself - has been challenging to slow down. "Not everyone has an explanation," said Anirrudh Patel, a Tufts psychologist who was not involved in a lemur study. He says that rhythm is often confused with a beat. Both are basic, moving forces that force you to move your hips or grab the knot of your fingers in time to the music. But the two are not always in agreement. Imagine Gregorian singing, which has no beat and is still rhythmic. While a beat is usually an isochronic, steady beat, the rhythm is the relationship between events such as notes, clicks, or drum beats.

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Patel defines rhythm as the systematic arrangement of events in time. That includes everything from oompah-pah polka dot notes to John Cage's Organ composition2/ ASLSP (Slow-paced), a continuous performance expected to last 639 years, in which the notes are divided by years of silence.

For decades, scientists saw visual rhythm as a unique human ability until Snowball, the star of cockatoo and YouTube, came into view in 2007. In viral videos, Snowball bangs her claws and marks his head in time for a visit with the Boys Backstreet, the Queen, and Michael Jackson. When Patel saw the fragments, he immediately introduced Snowball to his laboratory and began to see if these dances were a coincidence or if the bird could recognize the rhythm of the songs. . Patel's investigation showed that this was not an accident. When his team exploded or slowed down the music, Snowball changed his movements to equalize.

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