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Two trees , one with open foliage and another with closed foliage are the setting for these two fighting scenes . As it acts more centrally to the spinal column and brain , it therefore dulls pain to the thorax and abdomen ( the nerve arcs to the vital organs and those in close proximity being much shorter ) , thus its effectiveness in treating motion sickness and IBS ( irritable bowel syndrome ) . For example , reptiles with interlocking bites are carnivores , those with closed teeth are herbivores ; animals with horns and hooves invariably possess vegetarian grinding teeth , etc. Cuvier was perhaps the leading vertebrate paleontologist of his time and could identify the familiar fossils of France from fragments of fossilized bone .