Brain evolved from two primitive nervous systems merged together, Stanford study finds
AnnaCiaunica · x · 2026-09-20
- A Stanford team led by Kyle Loh found that the forebrain/midbrain and hindbrain develop from two distinct progenitor cell types in embryos — one expressing OTX2, the other GBX2 — across humans, mice and other species, contradicting the assumption of a shared origin.
- The finding suggests our brain is a hybrid of two ancient nervous systems fused spatially hundreds of millions of years ago, with evolution relying on this primordial two-piece construction rather than a more efficient single organ.
Related event: Stanford Study Suggests the Brain Is Two Independent Organs Merged(3 posts)→
More from Research
- TissueMicroscopyBench: 49 evals to test AI agents on biological microscopy — kenbwork · 2026-11-12
- minpts-check: one-run predictor tells if your HDBSCAN clusters survive min_samples changes — leland_mcinnes · 2026-11-12
- LLM clinical ethics audit: near-deterministic decisions underweight patient autonomy — zakkohane · 2026-11-12
- Architecture study sparks monitoring concerns over a multi-hop planning spike — ChowdhuryNeil · 2026-11-12
- SGLang Megakernel Pushes Muse Spark to 1,109 tok/s, 2.1x Over Baseline — hsu_byron · 2026-11-12
- ArcGrav: a cross-model Agent Control Language to cut token overhead — ArchitecturalGravity · 2026-11-12