How the two hemisphere of a shark brain work with its body function??
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White Shark Brain
The shark brain has long been impugned as being tiny, simple, and relatively unimportant. Superficial examinations of the brain of small, evolutionarily conservative sharks — such as the Spiny Dogfish (Squalus acanthias) — seemed to bear this out. Experiments severing the spinal cord of swimming dogfishes, so that the brain could no longer co-ordinate swimming movements, have demonstrated that these sharks can continue to swim for several hours — although they no longer respond to changes in their swimming environment. Sharks were therefore dismissed as primitive, stupid automatons functioning almost exclusively on the basis of brutish instinct. By painting all sharks with the same biased brush, we have arrogantly denied their biological diversity and grossly underestimated their mental capabilities.
It turns out that the brains of at least some sharks are surprisingly large and complex. Numerous popular writers have characterized the brain of a full-grown White Shark as being about the size of a walnut. While this description creates a vivid mental image, it is inaccurate and highly misleading. In truth, this includes only one part of the White Shark brain, the cerebrum. The complete brain of an adult, 16-foot (5-metre) White
The shark brain has long been impugned as being tiny, simple, and relatively unimportant. Superficial examinations of the brain of small, evolutionarily conservative sharks — such as the Spiny Dogfish (Squalus acanthias) — seemed to bear this out. Experiments severing the spinal cord of swimming dogfishes, so that the brain could no longer co-ordinate swimming movements, have demonstrated that these sharks can continue to swim for several hours — although they no longer respond to changes in their swimming environment. Sharks were therefore dismissed as primitive, stupid automatons functioning almost exclusively on the basis of brutish instinct. By painting all sharks with the same biased brush, we have arrogantly denied their biological diversity and grossly underestimated their mental capabilities.
It turns out that the brains of at least some sharks are surprisingly large and complex. Numerous popular writers have characterized the brain of a full-grown White Shark as being about the size of a walnut. While this description creates a vivid mental image, it is inaccurate and highly misleading. In truth, this includes only one part of the White Shark brain, the cerebrum. The complete brain of an adult, 16-foot (5-metre) White
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