The Latest Research, Innovation & Impact News
525-million-year-old fossil defies textbook explanation for brain evolution
According to a new study, fossils of a tiny sea creature with a delicately preserved nervous system solve a century-old debate over how the brain evolved in arthropods, the most species-rich group in the animal kingdom. Combining detailed anatomical studies of the fossilized nervous system with analyses of gene expression patterns in living descendants, they conclude that a shared blueprint of brain organization has been maintained from the Cambrian until today.
UArizona scientists thrilled by unprecedented 'portrait' of an alien world
Discoveries include the identification of a "mystery molecule" that had previously been detected but stumped astronomers, and insights that help build know-how needed to interpret potential signs of habitability on other exoplanets, including worlds that have yet to be discovered.