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Penghu Seabed Leg Bones Identified as Denisovan Fossils

Protein analysis assigns two partial leg bones from the Penghu Channel to Denisovans pending peer review with genomic data required for confirmation.

Overview

  • A University of Tokyo–led team analyzed a femur and a tibia recovered from the Penghu Channel and used preserved proteins and bone shape to attribute the fossils to the Denisovan lineage.
  • The researchers reconstructed large body sizes from incomplete elements, estimating one individual near 5 ft 11 in and about 183 lb and the other over 6 ft 2 in and roughly 200 lb.
  • The bones are reported from seabed finds that entered Taiwan’s National Museum of Natural Science collection and are dated by the authors to about 45,000–43,000 years ago.
  • Authors highlight supporting chemical and morphological signals that hint at a meat-heavy diet and high mobility, but they stress that the study is a bioRxiv preprint and that genomic data and more fossils are needed to confirm behavioral or population-wide claims.
  • Public commentary has linked the size estimates to biblical 'giants,' a claim the researchers do not support and that goes beyond what the current protein and morphological evidence can show.