Mass frog burial baffles experts at iron age site near Cambridge

An unprecedented trove of 8,000 bones presents archaeologists at a road dig with a prehistoric mystery

Archaeologists working near the site of an iron age home near Cambridge were perplexed when they uncovered a vast trove of frog skeletons. Quite why more than 8,000 bones had been piled up and preserved is a prehistoric mystery.

They were all recovered from a single 14-metre-long ditch, right next to the site of an iron age roundhouse at Bar Hill, where there was a settlement during the middle and late iron age (400BC-AD43). The discovery was made by the Museum of London Archaeology (Mola) Headland Infrastructure, conducting excavations as part of the National Highways A14 Cambridge to Huntingdon road improvement scheme.