Genetic Adaptations in Bajau Divers, Human Language Origins, and Ancestral Mixing

The Bajau tribe of Indonesia exhibits genetic adaptations to diving, including larger spleens, enhancing oxygen storage. Members dive up to 230 feet, spending 60% of their time underwater. A study suggests human language emerged over 135,000 years ago, influencing complex behaviors. Genetic data indicates an early split in Homo sapiens populations, with language present before the split. Research traces all humans back to a single African woman around 200,000 years ago, the "Mitochondrial Eve", whose mitochondrial lineage survived. A Cambridge University study suggests modern humans originated from at least two ancestral populations that mixed around 300,000 years ago, with one population contributing more to the modern human genome.