Steve Brusatte: Bird skulls reveal dinosaur brain
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- Steve Brusatte says that by identifying distinctive brain features in bird skulls that correlate with modern behaviors at 95% confidence, scientists can infer similar capabilities in extinct dinosaurs like T. rex.
- International research team led by Brusatte is examining bird skull anatomy to detect possible markers of tool use, planning, and empathy that could be present in dinosaur brains.
- Birds are confirmed as true dinosaurs, having survived the K‑Pg extinction and retaining evolutionary links such as feather origins for insulation and later for display and flight.
- The Story of Birds, Brusatte’s new book (Pan Macmillan, £25), chronicles the evolution from feathered theropods to modern avian diversity, including examples like Archaeopteryx and terror birds.
- Quail embryo studies reveal a pelvis structure resembling that of theropods such as T. rex, illustrating deep developmental homology between birds and dinosaurs.
- Genetic experiments that activate dormant tooth genes in chicken embryos can produce teeth, underscoring the latent dinosaur traits in modern birds.
Why it matters: Palaeontologists gain a concrete tool to infer dinosaur cognition, reducing reliance on speculative morphology, while the broader scientific community benefits from a testable framework linking modern bird neuroanatomy to extinct species. This could reshape textbooks and public perception of 'dumb' dinosaurs.
