A gene that was carried by both Neanderthals and Denisovans causes mice to develop larger heads, twisted ribs, and shortened spines, according to the results pushlished in the journal Frontiers. Researchers used CRISPR gene editing technology to insert the ancient genetic code into rodents in order to understand how it might have contributed to the body shape of our extinct relatives. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

The gene in question is known as GLI3 and plays a vital role in embryonic development in modern humans. Mutations within this gene are associated with physical malformations such as polydactyly - which refers to the growth of extra fingers or toes - and the deformation of the skull.

Neandertha

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