Continuing Darwin's Theory, Scientists Examine How Humans First Learned to Walk Upright?

Continuing Darwin's Theory, Scientists Highlight How Humans First Learned to Walk Upright?

Continuing Darwin's Theory, Scientists Examine How Humans First Learned to Walk Upright?

The following is the translation of the given 'Bahasa' text to 'English' while preserving any html tags: "Fossilized ape, aged 6 million years, has provided new clues about the evolution of human movement. In a study published in the journal Innovation, a team of scientists used a new method to study the skull of prehistoric apes, known as Lufengpithecus."

Until now, most studies on the evolution of primate movements have focused on comparing bone structures, such as limb bones, shoulders, hips, and spinal bones.

This research aims to understand the relationship between the structure of these bones and various types of observed movement behaviors in monkeys and humans.

"Evolution of Ancient Primates"

However, variations in locomotor behavior observed in living primates, ranging from walking upright to climbing trees and walking on all fours, along with limited fossil data, have hindered the development of a clear understanding of the origins of human bipedalism. New approaches in research have attempted to address this challenge by analyzing the inner ear bone structure of the Lufengpithecus skull, an extinct primate species that lived over 6 million years ago.

The use of three-dimensional CT-scan technology on this skull, which was originally discovered in the Yunnan province, southwest China in the 1970s and 1980s. In this study, a student from the Chinese Academy of Sciences, Yinan, stated that the size and shape of the semicircular canal have a correlation with the way mammals, including monkeys and humans, move around their environment.

The following 'Bahasa' text translated to 'English' while preserving any html tags: "The skulls examined by scientists in the latest research were all found in a destroyed state, covering the ear bone area."

This makes researchers believe that the smooth semicircular canals are not preserved.

This study provides an overview of the evolution of human bipedalism, which is characterized by three distinct stages.

First, the earliest monkeys moved in trees in a manner that most closely resembles the way siamangs in Asia do today. Second, the last common ancestors of monkeys and humans had a locomotor repertoire similar to Lufengpithecus, using a combination of climbing and brachiation, forelimb suspension, arboreal bipedalism, and terrestrial quadrupedalism. It is from this broad ancestral locomotor repertoire that human bipedalism evolved.

<b>Studi ini memberikan gambaran evolusi bipedalisme manusia yang ditandai oleh tiga tahap berbeda.</b>

This study also investigates the rate of evolutionary changes in the semicircular canals in primates. The results show a dramatic increase in the rate of evolution around 3.2 million years ago. This coincides with a period of global cooling associated with the onset of glaciation in the Northern Hemisphere.

"Current climate change may be a key trigger in the acceleration of bipedalism evolution in the earliest species of Homo genus in Africa," Harrison told Newsweek.

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