Sleep, but not as we know it

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During sleep, dolphins will shut down only one hemisphere of their brain, and close the opposite eye. During this time, the other half of the brain monitors what is going on in the environment and controls breathing functions. >> read more …


Genes lost during the transition from land to water in cetaceans highlight genomic changes associated with aquatic adaptations

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The ancestors of modern cetaceans (whales, dolphins, and porpoises) transitioned from a terrestrial to a fully aquatic lifestyle during the Eocene about 50 million years ago. This process constitutes one of the most marked macroevolutionary transitions in mammalian history and was accompanied by profound anatomical, physiological, and behavioral transformations that allowed cetaceans to adapt and […]


Artificial materials reconstruct porpoise’s echolocation

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Over millions of years, porpoises have developed powerful biosonar with high accuracy and intelligence to detect and track prey in noisy underwater environments. According to textbook sonar theories, it is difficult to control the directional sound waves for target detection. Porpoises, with remarkable sonar detection capabilities, have been known as a natural legend of echolocation, […]