Search results
Results from the WOW.Com Content Network
Certain words in the English language represent animal sounds: the noises and vocalizations of particular animals, especially noises used by animals for communication. The words can be used as verbs or interjections in addition to nouns , and many of them are also specifically onomatopoeic .
A Doppler shift is an alteration in sound wave frequency, and is produced in two relevant situations: when the bat and its target are moving relative to each other, and when the target's wings are oscillating back and forth. CF-bats must compensate for Doppler shifts, lowering the frequency of their call in response to echoes of elevated ...
Animals were reported to have fled the area hours before the actual tsunami hit the shores of Asia. [34] [35] It is not known for sure that this is the cause; some have suggested that it may have been the influence of electromagnetic waves, and not of infrasonic waves, that prompted these animals to flee. [36]
Bats are extreme when it comes to sound production and have a greater vocal range than singers like Mariah Carey and Prince, a new study suggests. Many animals produce sound to communicate with ...
The multiple sounds odontocetes make are produced by passing air through a structure in the head called the phonic lips. [28] Biologically the structure is homologous to an upper lip located in the nasal cavity, but mechanistically the phonic lips act similarly to human vocal "cords " (vocal folds), which in humans are located in the larynx .
Echolocation is the process where an animal produces a sound of certain wavelength, and then listens to and compares the reflected echoes to the original sound emitted. Bats use echolocation to form images of their surrounding environment and the organisms that inhabit it by eliciting ultrasonic waves via their larynx.
While terrestrial animals often have a uniform method of producing and detecting sounds, aquatic animals have a range of mechanisms to produce and detect both vocal and non-vocal sounds. [7] In terms of sound production, fish can produce sounds such as boat-whistles, grunts and croaks using their swim bladder or pectoral fin.
The pulses of sound produced by the bat last only a few thousandths of a second; silences between the calls give time to listen for the information coming back in the form of an echo. Evidence suggests that bats use the change in pitch of sound produced via the Doppler effect to assess their flight speed in relation to objects around them. [27]