Dolphin Echolocation
Dolphin
Echolocation
Echolocation
is a technique used by some animals to detect other animals,
food and obstacles.
As implied by its name, this
technique uses the echo, produced by a sound emitted by the
animals with this capability, to locate such objects.
Dolphins and some
whales, besides some other animals, like bats, have this
ability.
The sound travels
in the form of waves and when it is bounced back by solid
objects either in water or air, it is then detected by the
dolphin. This bouncing is called “echo” and it is the same
as the voice echo we hear in caves, but at a much precise
level.
Animals with
echolocation ability, are capable to detect this echo when
is deflected back by a solid object.
In the case of dolphins, they
emit a a beam of clicking sounds forward in the direction fo
their head and receive the echo from this sounds in the lower
jaw.
This
sophisticated system can calculate the distance where an
object is located because of the time taken by the echo to
return to the dolphin. As sounds can travel quite a distance
in the water, dolphins are capable to detect dangers or food
which is even out of sight.
This technique is used by humans
in radars or sonars where some kind of wave is emitted and the
bounced back wave is detected and processed.
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Dolphin Echolocation.
Dolphins make a sound that travels
quickly through water. The sound is
bounced back and the information decoded
in the Dolphin Melon.
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