One of the mysteries of the English language finally explained.
The location of objects by reflected sound, in particular that used by animals such as dolphins and bats.
- ‘Some bats, for example, which navigate by echolocation, both emit and hear sounds with frequencies of more than 100 kHz.’
- ‘The rivers used by most platanistids are muddy, and these animals probably rely on echolocation more than vision to locate their prey.’
- ‘But their hearing and echolocation is the greatest almost of any animal.’
- ‘Moths typically go into erratic dives when they sense that they have been detected by nearby bats using echolocation.’
- ‘Flying foxes use their excellent eyesight more than echolocation, or bouncing sounds, to locate their food at night.’
- ‘Like bats, dolphins use echolocation, an internal sonar system, to help them navigate, avoid predators and find food.’
- ‘Many odontocetes can navigate by echolocation, producing sound waves using a complex system of nasal sacs and passages, and using the echoes to navigate.’
- ‘Horseshoe bats have a special kind of echolocation (termed ‘high duty cycle’), which allows them to use the Doppler shift to detect the flutter of moth wings.’
- ‘You can imagine, for instance, the way certain animals use echolocation to find a target or source.’
- ‘Toothed whales, such as dolphins, rely on this auditory sense when hunting prey by echolocation.’
- ‘An additional explanation for the absence of either mode in Microchiroptera is their reliance on echolocation, and their need to maintain regular sensory input.’
- ‘For example, echolocation by bats and toothed whales is dependent on the sound transmission properties of air and water that can change with temperature or density.’
- ‘But the whale's skull indicates it couldn't produce ultrasonic signals - meaning it didn't use sonar or echolocation, like some dolphins and certain whales do today.’
- ‘Bats are not the only animals that use echolocation.’
- ‘Research suggests that noise from whale watching boats may interfere with the animals' echolocation and communication, making it more difficult for them to hunt for fish.’
- ‘Sharks have an acute electric sense with which they can detect prey, dolphins can detect characteristics of objects from a distance using ultrasonic echolocation, and crabs perceive water depth by sensing water pressure.’
- ‘It's been known since the 1930s, with the discovery of bat echolocation, that animals can produce pitches too high for human hearing.’
- ‘This structure may help focus the sound emitted by these animals in echolocation and feeding.’
Top tips for CV writingRead more
In this article we explore how to impress employers with a spot-on CV.