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An analysis of more than 70,000 fossils indicates that mollusk communities were incredibly resilient to major climatic shifts during the last ice age. Scientists from the Florida Museum of Natural History and several European research institutions tracked the history of Adriatic ecosystems through two warm periods that bookend the most recent glacial expansion. Their results show that major changes in temperature, salinity and sea-level had much less of an impact on mollusk communities than the current environmental crisis caused by human activity in the region.