Human Evolution
Ancient lead exposure may have shaped human brain evolution
A study of fossil teeth reveals that prehistoric hominids were exposed to lead for at least 2 million years, potentially influencing brain evolution. Modern humans appear to have adapted better to the toxin than relatives like Neanderthals, according to research using ancient samples and brain organoids. However, some experts question the extent of this exposure and its evolutionary implications.
Archaeologists uncover Paleolithic tools on Turkey's Ayvalık coast
New research reveals a once-submerged land bridge along Turkey's Ayvalık coast that may have enabled early humans to migrate from Anatolia to Europe. Archaeologists discovered 138 Paleolithic tools across 10 sites, challenging traditional theories of human dispersal. The findings, published in the Journal of Island and Coastal Archaeology, suggest the region served as a key passageway during the Ice Age.
Evolution of human intelligence linked to mental illness vulnerability
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Researchers have traced genetic variants in the human genome to reveal that advances in cognitive abilities around 500,000 years ago were soon followed by mutations increasing susceptibility to psychiatric disorders. This suggests a trade-off in brain evolution. The study, published in Cerebral Cortex, analyzed 33,000 genetic variants to build an evolutionary timeline of brain-related traits.
Netherlands Repatriates Historic Fossils to Indonesia
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In a significant act of cultural restitution, the Netherlands has returned a major collection of fossils, including the famed 'Java Man' skull, to Indonesia after decades of negotiations. The handover, facilitated by the Naturalis Biodiversity Center, marks a step towards addressing colonial-era acquisitions and fostering international scientific collaboration. Officials from both nations hailed the move as a model for repatriating artifacts taken during colonial periods.