Why parrots can talk like human but monkey can not?

 INTRODUCTION:

Dr. Phillip Lieberman conducted research on the rhesus monkey in 1960, which proved that monkeys have a comparable vocal cord to humans but cannot speak the letter 'A.' Without the letter, 'A' would not be able to communicate as effectively. The vocal box in birds is called the 'SYRINX.' It shapes portions of the voice using its beak and tongue, which manipulate muscles on the larynx to generate a more pleasing sound. Parrots are the only birds that can utilize their tongue the same way humans can.

    STUDIES ON MONKEYS:

The first detailed study on monkey speech was done in the 1960s and 1970s, Dr Philip's study showed that monkeys were not able to speak the vowel ‘A’. These experiments were done on the dead specimens. Scientists wanted to confirm them on an alive animal with X_ray and the results were shockingly similar to Dr. Phillips result.

                         Many neuroscientists believe that monkey does not have the necessary nerve pathways that prevent them from speaking despite a really developed acoustic system.

TRAINING ON MONKEY FOR SPEECH:

Many individuals have attempted but failed to train monkeys to speak. Although monkeys are clever and capable of doing tasks such as driving, they are unablcannotate.

HOW PARROT SPEAK:                                                            

                                                               To understand this first we need to know that humans have larynx come first then comes trachea
                                                                                                               

 

The syrinx (rather than the lyrinx) comes before the trachea in birds. Parrots use their muscles to control syrinx in a way that is similar to humans.

A parrot can produce more pitches than a piano in the 10th of a second.

HOW DO BIRDS MAKE UP FOR LIPS DESPITE BEAKS:

Descpite having a beak instead of lips they can speak with help of esophagus speech. They use the muscle of lyrinx with it,