Thorin's Secret: Newly Discovered Neanderthal Lineage Challenges Genetic Uniformity Beliefs

September 12, 2024
Thorin's Secret: Newly Discovered Neanderthal Lineage Challenges Genetic Uniformity Beliefs
  • In 2015, the remains of an individual named 'Thorin' were discovered in the Drôme region of France, marking a significant archaeological find.

  • The study suggests that at least two distinct Neanderthal populations coexisted during the period leading up to their extinction, challenging the notion of a genetically homogeneous group.

  • First author Tharsika Vimala noted that the presence of at least two Neanderthal populations at the time of extinction contradicts previous beliefs about their genetic uniformity.

  • The find was kept secret for nearly a decade while researchers investigated its significance, ultimately revealing a wealth of information about Neanderthal genetics.

  • After nearly 10 years of study, the research on Thorin's genome was published in the journal Cell Genomics, led by archaeologist Ludovic Slimak from CNRS.

  • New DNA analysis indicates that Thorin belonged to a previously unknown lineage of Neanderthals that had been isolated for approximately 50,000 years.

  • The isolation of Neanderthal communities, such as Thorin's, may have contributed to their extinction by limiting genetic variation and adaptability to environmental changes.

  • Thorin's genetic makeup shows no signs of interbreeding with other Neanderthals or Homo sapiens, raising questions about social dynamics among these groups.

  • Experts suggest that the lack of genetic exchange and competition for resources likely played a role in the decline of Neanderthals.

  • Further excavation at Grotte Mandrin is necessary to confirm the dating and significance of Thorin's remains, as ongoing research continues to uncover more about late Neanderthal populations.

  • Thorin exhibited two extra lower molars, a trait that may indicate inbreeding within his isolated population, adding complexity to his lineage.

  • Neanderthals, a distinct human species, are believed to have disappeared around 40,000 years ago, with many modern humans carrying traces of Neanderthal DNA due to interbreeding.

Summary based on 12 sources


Get a daily email with more Science stories

More Stories