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An octopus’s arms contain more neurons than its central brain, and scientists have learned how they are organized
3+ week, 2+ day ago (1047+ words) Octopus arms have an axial nerve cord built in repeating segments, the first case of nervous system segmentation documented in any mollusk. An octopus feeling its way into a rock crevice is not waiting on orders from its brain. Most…...
One of medicine’s rarest tumors appeared in saber-toothed cat spines
3+ week, 2+ day ago (1149+ words) Fossils from the La Brea Tar Pits suggest some saber-toothed cats suffered from painful spinal growths that may have made hunting difficult. The La Brea tar pits were the ultimate predator trap: a plant-eater would blunder into the asphalt, cry…...