you don't need eyes to see you know just look at the marvel superhero daredevil or kenshi
from the mortal kombat series i know it's hard to believe but there are animals out there that use
their sounds to build a virtual map inside their heads about where they're going they're so good
at it that it makes us having eyes seem like the old norm so without further ado let's check out
this video welcome to animals wild tv let's get started echolocation has been around this earth
for thousands maybe millions of years long before we humans came into existence for those of you
who don't know how it works well think of it as playing marco polo the only difference is that
you're not saying polo back and it's a matter of life and death animals use it all the time as they
are either very reliant on it or completely blind to begin with bats dolphins and other creatures
utilize echolocation to detect the location of objects via reflected sound this enables the
animals to explore hunt recognize friends and foes and avoid obstacles in complete darkness
we humans have also copied that idea and have since been using it for our own advantage
such as the sonar systems on ships boats and every other sort of oceanic vessel
sonar is a device that detects things using sound waves these things are detected using a
sonar which sends out ultrasonic waves into the water and detects the return to echoes
the sonar can detect and display the distribution density and movement of
a school of fish in all directions at an angle of 360 degrees or 180. of course we use it with
the help of machines but for most animals it's a natural process and their lives depend on it
first off the bat we have well bats these are commonly known to use sound as an instrument to
see in the dark or when they're blind and can't see anything hence the term blind as a bat bats
use echolocation to find their way around by producing high frequency sound pulses via their
mouths or noses and listening for the echo the bat can assess the size shape and texture of
things in its environment using this echo a little more equipped than our machines don't you think
imagine this if i had echolocation just like the bats i could use it to determine
who is who out of two people who are standing right in front of me without them making noise
next in line we have the happiest creatures on our planet the dolphins if you thought seeing the
world from your eyes was enough of a blessing well these guys can use their eyes and their
echolocation as well in front of the dolphins blowhole in the area we call our forehead is
their melon the melon consists of fatty tissue and fluid and serves as the lens through which sound
is focused during echolocation echolocation is seeing with sound much like a sonar on a submarine
they can only echolocate in the water and not through the air sound waves are created in the
nasal sacs and focus through the melon at various frequencies allowing the dolphin to see with sound
the shrew is also an animal which i don't think many of you were actually expecting
to see on this list were you well these guys also use echolocation as they are lacking behind
when it comes to the eyesight department shrew sounds are low amplitude wide band
multiharmonic and frequency modulated unlike bat sounds they don't have any reverberations
or echolocation clicks and they appear to be employed for a simple close-range
spatial orienting shrews unlike bats utilize echolocation only to study their surroundings
rather than to locate food another member of the dolphin family also uses echolocation to go
about its average day and you probably have never heard about this animal these are the porpoises
that are just as different from dolphins as they are similar the most notable difference can be
the color which is the same duochrome color style as the killer whales white and black
harbor porpoises like other toothed whales utilize echolocation to locate food like fish and squid
they listen for echoes after emitting powerful ultrasonic waves in the narrow sound beam
now it's time to look at the sky as the next contender that we have on our list is a bird
more specifically known as the oil bird oil birds are active at night employing great olfaction
and very light sensitive eyes to forage for fruits and echolocate as they depart and return to their
deep roosts the birds generated click bursts that lasted fewer than ten milliseconds and consisted
of a varied number of two to eight clicks at two to three millisecond intervals during echolocation
at six decibels from the signal peak frequency the click bursts have a bandwidth of seven to
twenty three kilohertz they use this complex method to hunt and see objects at a wider
range than bats when compared another bird that uses this same method is the swiftlets
they're called as such as they barely make a sound while they're in flight almost the same as an owl
when it hunts for its prey to find their roost in gloomy tunnels these birds utilize echolocation
aerodramas swiftlets emit clicking noises that are well within the human hearing range unlike
bats which use echolocation the clicks are made up of two broadband pulses of
around three to ten kilohertz separated by a brief delay of one to three milliseconds
how can we talk about echolocation and not mention whales of any sort these are the
humpback whales which are one of the largest whale species of tooth whales out there
these gentle giants use these echolocations to call out to other whales that might be nearby
or a little further than them how far you ask well being as big as they are these whales communicate
over 9 kilometers or more and call out to other whales that might be swimming in the distance
the figure is not clear but it's estimated to be even more than that
they also use this to attract a mate that might be seduced by this love song of the whale world
belonging to the lemur family over in madagascar these are eye eyes the weird name comes from the
sound that these guys make when fleeing from danger going hi hi the only primates known to
utilize echolocation to locate prey are eye eyes they use that lengthy middle finger to
tap on trees and listen for wood boring bug larvae moving beneath the bark they then fished them out
with that same middle finger that's one way to use that other than flipping someone off
these little cuties are called dormice and these guys are the most adorable species of rodents
i have ever seen not only is this rare rodent blind as a bat but it may also navigate like one
the ultrasonic sound of the tree climbing vietnamese pygmy dormouse appear to direct its
movement it would be the first arboreal animal known to use echolocation if this is verified
few mammals echolocate with the exception of bats dolphins whales rats and shrews which
employ auditory cries vision is typically more efficient gotta use that echolocation
to find that cheese you know what i mean lowland street tenrics utilize echolocation
to communicate with one another making sounds by tapping their rear quills together
this allows them to stay in their social groupings while also alerting one another to potential risks
the porcupine could really learn a thing or two from these small critters about how to
use their quills more efficiently like not stabbing everything that they rub up against
this is a sperm whale the animal with the loudest noise on earth it's said that these
guys produce clicks which are an astonishing 233 decibels the loudest of any animal ever these
clicks can rupture the eardrums of any human that's unfortunate enough to be swimming by
the clicks these guys use can spread for thousands of kilometers and can be heard
almost on the other side of the ocean now that's pretty freaking loud shouldn't be too much of an
issue when the teenage son of a mama whale has to come running whenever she's calling for him all
right that's it for today guys i hope you enjoyed what you saw do smash that like button if this
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