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'Enormous' cave under Pembroke Castle could rewrite history, researchers say

Archaeologists say rare bones and stone tools from the cave could reveal more than 100,000 years of human activity.

  • The University of Aberdeen will lead a five-year archaeological project at Wogan Cavern beneath Pembroke Castle, a site researchers describe as a "once in a lifetime discovery."
  • Long assumed to hold little archaeological value after Victorian disturbance, Wogan Cavern was transformed by small-scale excavations between 2021 and 2024, which uncovered "abundant evidence" of activity spanning more than 100,000 years.
  • Researchers unearthed remains of mammoths, woolly rhinoceroses, reindeer, and wild horses, alongside stone tools and traces of early human occupation by Homo sapiens and possibly Neanderthals.
  • Funded by the Calleva Foundation, the Pembroke Castle Trust plans to expand facilities to curate findings locally, with castle manager Jon Williams calling the project a "new and exciting chapter."
  • Dr. Rob Dinnis leads the research team and noted the cave's well-preserved sediments and ancient DNA offer a unique opportunity to chart human activity and environmental changes spanning more than 100,000 years.
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BBC News broke the news in United Kingdom on Wednesday, April 15, 2026.
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