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Many close relatives of our species, homo sapiens, It has been on this earth ever since the genre Homo Evolved 20 million years ago. These hominins lived in a variety of residential and harsh environments. Some have even crossed paths and interference.
However, more than one important technical and intellectual milestone has been achieved, eg. Fire control, Development of stone tools, Or To make clothes Today, only us, H. Sepians, Escape.
Scholars have debated our current uniqueness. Many have made this proposal H. Sepians‘Better technology The capabilities may have benefited us more than others. Others have suggested that we diets more varied or were more efficient runners than other hominins.
Meanwhile, other researchers believe that due to the high levels of crossbreeding, some hominins may not have been killed as much as completely absorbed by our gene pool.
The researchers also came up with this idea Climate change could play a role in the demise of Homo Species. In a new study, published in the journal A landA multidisciplinary team of scientists from Italy, the UK and Brazil argues that this was a major factor in the extinction of other activists.
The authors believe these revelations may serve as a warning as humanity today is experiencing man-made climate change.
“Even in the animal kingdom the power of the brain [the Homo genus]”Climate change cannot be avoided,” says Pasquel Raya, archaeologist at the University of Naples Federico II, one of the authors of the study.
For this study, the team focused on only six recognized individuals Homo Species: H. Habilis, h. Argaster, h. Erected, h. Heidelbergensis, h. Sleep apnea, IS H. Sepians. They left out the others because they were too limited to analyze the available biological records.
Using the fossil’s archaeological record database, the researchers mapped how these species survived over time, linking the biological evidence and tools associated with each species to different places and times.
They also applied a statistical modeling technique called Climate Emulator of the Past which uses available records to reconstruct weather conditions, including temperature and rainfall, over the past 5 million years.
Anthropologist Giorgio Manji says: “He paints a picture of the enormous effects of weather diseases.
For three of the five endangered species – H. Erets, h. Heidelbergensis, IS H. Sleep apnea – There was a sudden and rapid change in the weather on Earth as this species became extinct. The clams cooled for all three, for the dryer H. Hildelbergensis And the Neanderthals, And for soaking H.. According to Raya, the temperature variation per breast per year was about 4-5 degrees Celsius.
The researchers also assessed how vulnerable these species were to extinction in an effort to determine their tolerance to climate change over time, using their presence in various places as clues to their preferred location.
The team determined that before disappearing, H. IS H. Heidelbergensis More than half has been lost to climate change. The Neanderthals have lost nearly a quarter. Food resources are likely to be depleted by habitat change, and frost-warming species could be at risk of extinction.
This season’s interpretation doesn’t necessarily mean that other disappearances weren’t significant – the authors point this out with this meeting H. SepiansFor Neanderthals, for example, things could have gone wrong, but Rhea and her colleagues believe their analysis reveals a “prime factor” in the past. Homo Missing.
The disappearance of Neanderthals has been studied – And debate – Little, but little attention has been paid to the loss of other hominid species, says Tyler Faith, a University of Utah archaeologist who was not involved in the study. This new study represents the first attempt to understand how many qualities Homo Species went extinct in the great storm of space and time, he says.
“But I think it’s a little too early to let go of the potentially disappearing isms,” Faith continues. He notes that the limited biological documentation of some species makes it difficult to obtain a complete picture of the environment or weather conditions of the other Homo It can save species.
Similarly, anthropologist Giorgio Manzi of the Sappenza University of Rome, who did not take part in the study, noted that many factors must be taken into account to explain the disappearance of the past. Homo Species.
The relationship between climate change and extinction, he says, is complex, and they don’t always lead to each other: “Various sudden weather disturbances and environmental crises have been known for at least a million years. These conditions have not always led to the end. “
However, Manzi believes the new work reasonably demonstrates that climate change could have a major impact.
“It paints a picture of the enormous effects of environmental problems on the human population of different species,” says Manji.
With the possibility of warming the planet to 5 ° C above pre-industrial level by 2100, there are other climate challenges.
This work was previously published Sapins licensed under CC BY-ND 4.0. Actually read them here.
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