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The Neanderthals

12 questions · Science

No other early human has suffered so badly from its reputation. When quarry workers found a skull cap and bones in the Neander Valley near Düsseldorf in 1856, the remains were first taken for those of a Cossack with rickets; later a flawed reconstruction turned a severely arthritic old man into the prototype of the stooping, shuffling brute. Both were wrong. Neanderthals walked as upright as we do, had on average a slightly larger brain than modern humans, hunted with spears in teams, cared for the sick for years, produced birch tar glue (a process demanding temperature control without oxygen) and probably painted Spanish cave walls as early as 64,000 years ago, long before Homo sapiens reached Europe. Their bodies were built for cold: powerful, broad-chested, with short limbs that conserve heat. They lived from about 400,000 to 40,000 years ago across Europe and western Asia. And they did not vanish without trace. When Svante Pääbo's team sequenced their genome in 2010, it turned out that everyone outside Africa carries one to two percent Neanderthal DNA: the legacy of encounters and shared children. Some of those genes still shape immunity, skin and sleep today. Why the Neanderthals died out is unresolved; most likely it was no war but a mix of climate swings, small populations and plain displacement. Their scientific name is an irony of history: the valley was named after the hymn writer Joachim Neander and "Neander" is simply the Graecised form of "Neumann", new man.

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How much Neanderthal DNA do people outside Africa carry on average?

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One to two percent

The legacy of shared children after the migration out of Africa. Some of those genes still affect immunity, skin and sleep.

From the Neander Valley near Düsseldorf

Foto: AquilaGib · CC BY-SA 3.0 · Wikimedia Commons

Where does the name Neanderthal come from?

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From the Neander Valley near Düsseldorf

Quarry workers found the first recognised bones there in 1856. The valley itself is named after hymn writer Joachim Neander: whose family name was actually Neumann.

How did the Neanderthal brain compare with ours in size?

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Slightly larger on average

About 1,500 against roughly 1,350 cubic centimetres. Size alone says little about thinking: the proportions of brain regions differed.

Did Neanderthals walk stooped and shuffling?

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No

That image goes back to a 1911 reconstruction of an old, severely arthritic skeleton. Neanderthals stood and walked as upright as we do.

When did the Neanderthals live?

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From about 400,000 to 40,000 years ago

Across Europe and western Asia as far as Siberia. Their last refuges probably lay in the south of the Iberian Peninsula.

It was an adaptation to cold

Foto: Neanderthal-Museum, Mettmann · CC BY-SA 4.0 · Wikimedia Commons

Why were Neanderthals stocky with short forearms and shins?

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It was an adaptation to cold

A compact body has less surface relative to volume and loses less heat: the same principle shows in people living in Arctic regions today.

Which technically demanding adhesive did Neanderthals produce?

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Birch tar

Birch bark must be heated to several hundred degrees without oxygen: a multi-stage process requiring planning and control of fire.

What was found in Spanish grottoes in 2018 that predates the arrival of Homo sapiens in Europe?

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Neanderthal cave paintings

Red lines, dots and hand stencils dated to at least 64,000 years. That would make Neanderthals the first known cave painters; the dating is still debated.

What do healed severe injuries and toothless old skeletons prove?

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That the sick were cared for over long periods

The famous "old man of La Chapelle" survived with an almost toothless jaw and severe arthritis: hardly possible alone.

Whose team sequenced the Neanderthal genome in 2010?

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Svante Pääbo's team

At the Max Planck Institute in Leipzig: awarded the 2022 Nobel Prize in Medicine. Only the genome turned suspicion into certainty: there were shared children.

What is today's most likely explanation for their disappearance?

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A combination of climate, small groups and displacement

No "war of species" is documented. Small, isolated populations with little genetic diversity are fragile: slight disadvantages add up over millennia.

Which anatomical find suggests Neanderthals could speak?

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A hyoid bone like ours

The find from Kebara Cave in Israel matches the modern hyoid and Neanderthals carried the same variant of the speech gene FOXP2 as we do.

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