The optic lobes contain 120 to 180 million neurons and the nervous system of the arms contains two-thirds of the total 500 million neurons in the nervous system.
12.
These polar characteristics would have been exposed to 6 months of near-endless daylight during the summer also, where enlarged eyes and optic lobes would not have proven necessarily advantageous.
13.
For the second two weeks of its life, the gene is busy indeed, activated with particular vigor in the optic lobes and the so-called mushroom bodies of the bee brain.
14.
But their eyes and optic lobe were much larger than that of modern humans . " T . rex ", unlike most dinosaurs, had a combination of powerful eyesight and great sense of smell.
15.
Kathryn A . Converse, a wildlife disease specialist at the National Wildlife Health Center, where the necropsies have been performed, said the lesions eat away at the myelin sheath surrounding brain neurons, primarily in the optic lobe and spinal chord.
16.
"Small as it was, its brain was substantially bigger than a dinosaur brain, and the structure of the brain, its optic lobes and its sensory-motor lobes also show that it clearly was not stupid-- so the term bird-brain should be a compliment for anybody, " Padian said.
