After years of seemingly endless research, scientists have completed a first draft of the Neanderthal genome.

Nature reports that a team of scientists at the Max Planck Institute in Germany has sequenced 60 percent of the genome of a Neanderthal, the closest relative of modern humans. After analyzing more than a billion fragments of ancient DNA, the researchers constructed the genome mostly with DNA strands from a 38,000-year-old fossilized leg bone found in a cave in Croatia. They also used material from older remains, some up to 70,000 years old.

Neanderthals are thought to have been proficient at crafting basic tools and weapons, and died out shortly after Homo sapiens migrated to Europe, but the precise connection between the species has always been unclear.  The Neanderthal genome sequence will clarify the evolutionary relationship between humans and Neanderthals as well as help identify those genetic changes that enabled modern humans to leave Africa and rapidly spread around the world, starting around 100,000 years ago [PhysOrg].

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Neanderthals living in coastal caves in Gibraltar hunted and feasted on seafood, researchers say, adding another piece of evidence to the argument that Neanderthals weren’t outmatched and driven to extinction by more skilled and sophisticated Homo sapiens. “I don’t think that the success of one or the other had to do with subsistence, with the way they hunted or fed,” [researcher Clive] Finlayson said. “There may be other factors coming into this, or it may just have been a question of luck” [National Geographic News].

The discovery of seal, dolphin and fish remains in the caves dating from 60,000 to 30,000 years ago provides the first evidence that Neanderthals ate sea mammals as well as land grub. Archaeologists found the mammals’ remains among Neanderthal hearth sites in Vanguard and Gorham’s Caves on the Rock of Gibraltar. The bones of some of the animals have cut marks that were likely made by Neanderthals using flint knives, also found on site, to cut the meat off [LiveScience].

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A new analysis of the skulls of three Neanderthal babies shows that the cranium of a newborn Neanderthal was about the same size as that of a newborn Homo sapiens, and that the Neanderthal children grew faster than modern humans in the first few years of life. The report on the young skeletons, which date from between 45,000 to 50,000 years ago, adds fuel to the debate over how similar Neanderthal culture was to that of our early Homo sapiens ancestors.

A big-headed infant skeleton found in Russia suggests that childbirth was no easy task for for Neanderthal women. Neanderthal mothers had slightly larger birth canals, but the prominent face of Neanderthal babies made it just as hard to push out as a modern human. This suggests that both groups had the social structures needed to help with childbirth [New Scientist].

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Archaeologists have recreated the stone tools made by Neanderthals, and found them to be as useful and efficient as those made by the earliest Homo sapiens, who survived while the Neanderthal line died off. The new research is one of many recent studies claiming that Neanderthals weren’t just dumb brutes that were out-competed by early humans. Says lead researcher Metin Eren: “When we think of Neanderthals we need to stop thinking in terms of ‘stupid’ or ‘less advanced’ and more in terms of ‘different’” [Guardian].

Other recent studies have argued that Neanderthals hunted and communicated as well as the early Homo sapiens who arrived in Europe, where the Neanderthals already lived, about 45,000 years ago. But some archaeologists still believed that Homo sapiens had a technological advantage, because they used long stone tools called blades, as opposed to the Neanderthals’ disk-shaped flakes. In the new study, Eren’s team spent spent three years recreating blades and flakes, then measured their cutting power, durability and the amount of effort needed to produce them [Wired News]. In the end, Eren determined that the Neanderthals’ tools may have even had a slight edge over Homo sapiens tools.

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For the first time, scientists have sequenced the mitochondrial DNA of a Neanderthal. Researchers at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, analyzed the genetic material from a 38,000-year-old leg bone found in Croatia and published their findings today in Cell.

The mitochondria are only passed down the female line, so can be used to trace the species back to an ancestral “Eve”, the mother of all Neanderthals. The team analysed the DNA of 13 genes from the Neanderthal mitochondria and found they were distinctly different to modern humans, suggesting Neanderthals never, or rarely, interbred with early humans. The genetic material shows that a Neanderthal “Eve” lived around 660,000 years ago, when the species last shared a common ancestor with humans [Guardian].

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Cro-Magnon people and Neanderthals may have shared their European habitat from 45,000 to 30,000 years ago, but new evidence suggests that they didn’t get more intimate than that. Italian researchers sequenced mitochondrial DNA from Cro-Magnon bones dating from 28,000 years ago and found no trace of Neanderthal DNA, suggesting that the two early hominids did not interbreed to create modern humans.

The fate of the Neanderthals, who vanish from the fossil record around 30,000 years ago, has been fiercely debated. One theory, known as the Out of Africa hypothesis, holds that modern humans, whose ancestors had recently migrated from Africa, drove the Neandertals extinct, possibly through warfare, disease, or cognitive advantage. But the competing multiregional hypothesis argues that Neandertals and modern humans interbred and that Neandertals were absorbed into our gene pool [ScienceNow Daily News].

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Neanderthals don’t have the best reputation. In the public mind, the heavy-browed hominids are thought of as a stupid species that couldn’t compete with brighter Homo sapiens, as the also-rans that therefore went extinct. But a newly discovered trove of Neanderthal tools in Sussex, England may help rehabilitate their image. The tools, which date from the end of the Neanderthal era at around 30,000 B.C., show surprising sophistication, archaeologists say.

“The tools we’ve found at the site are technologically advanced and potentially older than tools in Britain belonging to our own species,” said [University College London]‘s Matthew Pope. “It’s exciting to think that there’s a real possibility these were left by some of the last Neanderthal hunting groups to occupy northern Europe,” he added. “The impression they give is of a population in complete command of both landscape and natural raw materials with a flourishing technology — not a people on the edge of extinction” [Discovery News].

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