Are the most intelligent animals the ones who yawn longer?

Are the most intelligent animals the ones who yawn longer?

Summary

Yawning is not only a uncontrolled human and animal action researched by doctors and psychologists, they have confirmed that hundreds of species of animals yawn like humans.

After analyzing 205 videos in youtube of the yawning of 177 animals and 24 species different, they did find a relation between features about a yawn and the brain of the animal.

The species with more varied yawns and of more length of time are the animals with brains heavier and with more neurons in the cortical.

Humans have 12.000 cortical neurons and our yawns is of 6 seconds of duration and for example rats yawn is 1,5 seconds.

http://www.lavanguardia.com/natural/20161006/41802600608/curioso-estudio-bostezos-inteligencia-animales.html

Date

06/10/2016

Scientific scope

Biology and animal. Yawn duration predicts brain weight and cortical neuron number in mammals

Glossary

Yawn: to take a deep breath with your mouthwide open

Lenght: How long is something from one end to the other

Species: A group of animals or plants that are the same in one way

Features: An important part of something

Neurons: A nerve cell that carries information between the brain and other part of the body

Commentary

Yawn is reflex that consist in inhaling air and stretching, it is a contagious reflex. There is approximately 20 physiological reasons why we yawn.
I think that this news is very interesting and i didn't know about it, i only thought that it was uncontrolled action that you do when you feel sleepy.

But this research demonstrates that is not the only characteristics that yawn gives us.

If you yawn longer that means that your brain is heavier and that you more neurons.

This study doesn't demonstrates that this appends in members of the same species but yes between other species.

It is also interesting that this research is also been done from the youtube platform of videos of animals yawning.
Yawning can mean that you a bored that's why this action sometimes it can be considerated a bad-behaviour.

In humans the yawn contagion is related to the social closenesses, that means that the higher level of contagion is with the people who are more bonded.