700,000-Year-Old 'Hobbit' Fossils Reveal Surprising Evolutionary Path on Flores Island

August 7, 2024
700,000-Year-Old 'Hobbit' Fossils Reveal Surprising Evolutionary Path on Flores Island
  • The recent discovery of fossils, estimated to be around 700,000 years old, sheds light on the evolution of Homo floresiensis, often referred to as 'Hobbits.'

  • Led by Professor Yousuke Kaifu, the study reports the finding of three additional fossils from Mata Menge, including the first postcranial element, a distal shaft of an adult humerus.

  • Digital microscopy confirmed that this small humerus belonged to an adult, with an estimated height of about 100 cm, which is shorter than previously estimated heights for Homo floresiensis.

  • These new fossils were discovered at the Mata Menge site, located 75 km east of Liang Bua, and are believed to pre-date the Liang Bua specimens by approximately 650,000 years.

  • Professor Chris Stringer emphasized the importance of tracking the evolution of a single lineage over time for future research.

  • Kaifu noted that the rapid emergence of a new body type highlights the varied pathways of human evolution, suggesting alternative developmental outcomes beyond intelligence.

  • The phenomenon of island dwarfism may explain the small size of these hominins, as they lived on an island with limited resources.

  • The findings indicate that the evolutionary history of the Flores hominins involves significant body size reduction over time, likely starting with early Asian Homo erectus becoming isolated on Flores.

  • Kaifu speculated that island natural selection may have favored smaller body sizes due to the absence of large predators like lions and tigers.

  • These findings challenge the perception of humans being unique in their evolutionary paths, demonstrating that they are also subject to natural selection like other animals.

  • The study's findings were published in the journal Nature Communications, highlighting the unexpected discovery of smaller individuals.

Summary based on 18 sources


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