Climate change has shaped human evolution over the past 2 million years


According to a new study, ancient humans evolved in response to climate change by settling and adapting to different habitats.

According to a study published in Nature, climate change caused by astronomical influences, including the tilt of the Earth’s axis and changes in the shape of the Earth’s orbit around the sun, has changed the amount of radiation sun reaching the globe.

According to the researchers, this contributed to the Ice Age and warmer interglacial periods.

According to the study, these climatic variations dictated where food was accessible, causing migration and adaptation.

“Even though different groups of archaic humans preferred different climatic environments, their habitats all responded to climatic changes caused by astronomical changes in the wobble, tilt, and orbital eccentricity of the Earth’s axis” , said climate physicist Axel Timmermann of Pusan ​​National University in South Korea.

Homo neanderthalensis, Homo erectus, Homo heidelbergensis, African Homo – Homo habilis and Homo ergaster – and Homo sapiens have had their environments mapped.

Climate change and human evolution have been the subject of previous research.

By integrating data from fossil remains and well-dated archaeological artifacts, the researchers attempted to fill in the gaps. They used a supercomputer to trace the history of Earth’s climate over the past two million years.

According to their findings, Homo erectus and Homo sapiens had the largest environments. Early African Homo sapiens found refuge in eastern and southern Africa, while Neanderthals were more numerous in Europe. According to the findings, Homo heidelbergensis inhabited Southern Africa, East Africa and Eurasia.

The researchers noted that while the five human species had a predilection for a certain habitat, they all reacted to climate change.

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