The Hominid Post

Humanity may have lost most of its linguistic diversity. A new model suggests language diversity peaked 1,000–3,000 years ago, possibly at tens of thousands of languages, before states and empires accelerated a long contraction. Today's roughly 7,500 languages are therefore a historically selective set of survivors. This is a reconstruction, not a prehistoric census.

Invasive species appear to cause more-severe damage in the Global South. Researchers analyzed more than 22,000 documented impacts across 172 countries. For 164 invaders found in both regions, average impact severity was 50% higher in the Global South. Governance and management capacity were stronger predictors than research volume.

The SEC is formally exploring preparations for 24-hour U.S. stock trading. A September 17 roundtable will examine overnight operations, resilience, liquidity and investor protection. No rule change has been proposed yet.

A global analysis found eight recurring acoustic building blocks underlying birdsong. Machine-learning analysis covered approximately 116,000 recordings from 3,160 species. The patterns reflect evolutionary history, anatomy and local habitat, suggesting enormous vocal diversity develops within shared biological constraints.

The human brain's immune-cell population may change sharply during midlife. In 40 neurologically healthy adults, resident microglia progressively declined between approximately ages 50 and 75 while cells with stronger inflammatory signatures became more prominent. The finding does not prove that this transition causes dementia.

Plant diversity reorganizes food webs differently across ecosystems. A synthesis of 149 experiments covering 214 sites found that diversity strengthened natural pest control in croplands, while grasslands and forests followed a more bottom-up pattern beginning with additional plant production.

A Zimbabwe accessibility program shows why inclusion requires operational change. Visual health information, staff training, non-slip surfaces, reliable clinic power and rehabilitation facilities helped increase enrollment of students with disabilities at one college from 56 in 2022 to more than 80. The broader program now reaches 52 institutions.

Intel reported a substantial AI-driven operating recovery alongside a large GAAP loss. Revenue rose 25% to $16.1 billion, Data Center and AI revenue increased 59%, and operating cash flow reached $7 billion. GAAP net loss was $11 billion, compared with $2.2 billion in non-GAAP income, underscoring the need to separate operations from accounting adjustments.

WHO released seven practical strategies to reduce drowning. Nearly 300,000 people drown annually, more than 90% in lower- and middle-income countries. The measures cover infrastructure, rescue, occupational safety, water transport, swimming instruction, childcare and flood preparation.

Countries are moving from meningitis guidance toward implementation. WHO-supported workshops prioritized vaccination, surveillance, laboratory confirmation, updated clinical protocols and long-term support for survivors. Meningitis still causes hundreds of thousands of deaths annually, but the update reports planning progress rather than measured outcome improvements.