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Homo heidelbergensis

life science Maturity 7-9 Next article →

Homo heidelbergensis was a species of archaic human. They lived during the Middle Pleistocene epoch. This group inhabited Europe and Africa. Some researchers believe they also lived in Asia. Today, scientists face a major debate regarding their classification. This confusion is often called the "muddle in the middle." This name refers to the wide anatomical variation seen in fossils from this era.

Homo sapiens lineage
Homo sapiens lineage

Scientists study how these humans lived through fossil remains. They likely evolved from Homo ergaster, an African version of Homo erectus. This change may have followed a population bottleneck between 800,000 and 900,000 years ago. By 700,000 years ago, populations moved into Europe. They carried Late Acheulean stone tools with them.

Boxgrove handaxe
Boxgrove handaxe

These ancient humans were likely active hunters. They may have hunted large animals like the straight-tusked elephant. They might have also hunted Stephanorhinus rhinoceroses. Some populations probably ate foodplants and small game to survive. By 500,000 years ago, their settlements became more permanent. They may have built huts or temporary shelters in Europe.

Elephasantiquus
Elephasantiquus

The discovery of this species began in 1907. Miners found a large human mandible in a sand pit. This site was near the village of Mauer, southeast of Heidelberg. The jawbone is known as Mauer 1. German anthropologist Otto Schoetensack described it in 1908. He named the species Homo heidelbergensis. At the time, it was the oldest human fossil identified in Europe.

Homo heidelbergensis (Mauer 1 cast) at Göteborgs Naturhistoriska Museum 8733
Homo heidelbergensis (Mauer 1 cast) at Göteborgs Naturhistoriska Museum 8733

Schoetensack noted several unique features in the Mauer 1 jaw. It was very large and lacked a chin. However, it also had more modern traits like small teeth. In 1983, British anthropologist Chris Stringer helped redefine the species. He used several key fossils to group them together. These include Kabwe 1, Petralona 1, Bodo, and Arago. These skulls are united by their supraorbital torus. This is a thick brow ridge above the eyes.

Qafzeh
Qafzeh
Tautavel UK 2
Tautavel UK 2

There are many theories about how Homo heidelbergensis relates to us. One theory suggests they were the last common ancestor of modern humans and Neanderthals. A common ancestor is a relative shared by two different groups. Another theory suggests they were a separate lineage that went extinct. Some scientists argue that African fossils belong to a different species called Homo rhodesiensis. Others believe Homo heidelbergensis was a very diverse species across the Old World.

Atlanthropus mauritanicus
Atlanthropus mauritanicus

Recent research adds even more complexity to the story. Genetic sequencing has identified a group called the Denisovans in East Asia. These archaic humans were closely related to Neanderthals. This discovery suggests that different human groups may have lived at the same time. Some late-surviving populations of Homo heidelbergensis may have even interbred with modern humans. The puzzle of our human family tree continues to grow as we find new fossils.

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🖼️ Images & Media (9)
File:Homo heidelbergensis (Mauer 1 cast) at Göteborgs Naturhistoriska Museum 8733.jpg
Homo heidelbergensis (Mauer 1 cast) at...
File:Qafzeh.JPG
Qafzeh.JPG
File:Atlanthropus mauritanicus.jpg
Atlanthropus mauritanicus.jpg
File:Homo sapiens lineage.svg
Homo sapiens lineage.svg
File:Tautavel UK 2.JPG
Tautavel UK 2.JPG
File:Elephasantiquus.jpg
Elephasantiquus.jpg
File:Boxgrove handaxe.jpg
Boxgrove handaxe.jpg
Gravierter Knochen Bilzingsleben.tif
Porosphaera globularis necklace.webp
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