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DOLPHINS: A Mind Of Their Own Dolphins use distinct "signature whistles" to identify one another. No other animal, besides humans, is believed to have specific labels for individuals, reports National Geographic magazine.. |
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Since the ancestors of dolphins left their fellow mammals behind and
entered the water more then 50 millions years ago, humans and dolphins
have evolved radically different bodies adapted to wholly separate
environments. But we share on notable piece anatomy-a large, complicated
brain. Among the challenges to our own big brains: penetrating the mystery
of how dolphins use theirs.
A Sharp Brain for Life Hard Bound Rs 2350 (Gift Edition) Call for home delivery 0345 8033244 |
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DIFFERENCES BETWEEN DOLPHINS AND HUMAN BRAINS Auditory nerve The auditory nerve in dolphins is twice as wide as it is in humans. More never fibers allow dolphins to make sense of sounds quickly. Visual organs Dolphins‘visual center sits right next to the auditory cortex, allowing their brains to translate sounds into images and images into sounds. |
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Corpus callosum Four times as large in humans as in dolphins, this never bundle in the center of the brains connect s the two cerebral hemispheres. Dolphins appear to shut down one hemisphere to sleep, and stay alert with the other. Seeing With Sound Dolphins have evolved a sensory system to detect object underwater echoes created by sounds. Sounds travels our times as fast in the water as in the air. |
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(Courtesy: National Geographic - subscribe now in Pakistan)
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