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echolocation    音标拼音: [,ɛkolok'eʃən]

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  • Animal echolocation - Wikipedia
    Echolocation, also called bio sonar, is a biological active sonar used by several animal groups, both in the air and underwater Echolocating animals emit calls and listen to the echoes of those calls that return from various objects near them
  • Echolocation | Bats, Dolphins Whales | Britannica
    echolocation, a physiological process for locating distant or invisible objects (such as prey) by means of sound waves reflected back to the emitter (such as a bat) by the objects Echolocation is used for orientation, obstacle avoidance, food procurement, and social interactions
  • What Is Echolocation? How Does Echolocation Work? - Science ABC
    Echolocation refers to the ability to see using sound waves In bats, whales, and dolphins, echolocation is used to see in the dark Humans also have the ability to use echolocation, but it is often suppressed With practice, however, humans can train themselves to use echolocation
  • Echolocation is nature’s built-in sonar. Here’s how it works.
    Nature’s own sonar system, echolocation occurs when an animal emits a sound wave that bounces off an object, returning an echo that provides information about the object’s distance and size Over
  • What Is Echolocation? How Animals and Humans Use It
    Echolocation lets animals navigate by sound — and humans can learn it too Here’s how bats, dolphins, and people use reflected sound waves to “see ”…
  • What Is Echolocation and How Does It Work? - Biology Insights
    Echolocation enables various organisms to perceive their surroundings through sound It involves the emission of sound waves and the interpretation of the echoes that return from objects in the environment
  • Echolocation - New World Encyclopedia
    In biology, echolocation, or biosonar, is the physiological process of emitting sound waves and interpreting the echoes reflected back to the emitter in order to identify objects and determine their direction and distance
  • Echolocation in Bats
    Atmospheric attenuation coefficient α( f ) strongly increases with frequency At low frequencies Geometric spreading [1 R4] is the dominant range-dependent factor At high frequencies Atmospheric attenuation [exp(-2αR)] is the dominant factor, and it strongly limits the maximal possible range of echolocation at such frequencies
  • The Perks of Echolocation - Kesler Science Weekly Phenomenon looks at . . .
    Other animals use echolocation to hunt or navigate, too Sperm whales emit sounds to locate fish or giant squid Dolphins send out a series of clicks and squeaks and sense the returning sound with their lower jaw 🐬 Scientists are pretty sure nocturnal oilbirds and cave-dwelling swiftlets also use some form of echolocation
  • The Evolution of Echolocation - Smithsonian Ocean
    Similar to bats, all modern toothed whales possess a kind of biological sonar known as echolocation that helps them navigate environments where other senses may not allow





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