₦airaland Forum

Animals with the best sense of hearing

1- Sharpest hearing – The owl
These birds have phenomenal hearing. Their large ear holes are at slightly different heights, above and below eye level, helping them pinpoint the vertical positions of sound sources. But what is truly astonishing is their reaction time. In complete darkness, it takes tawny owls less than 0.01 of a second to assess the precise direction of a scurrying mouse, for example.

2- Best natural sonar system – Bats & dolphins
Bats and dolphins find their way in complete darkness, or murky waters, using a biological sonar system called echolation. This involves emitting ultrasonic chirps (or clicks) and interpreting the echo the sound waves make after bouncing off objects and other creatures in their vicinity.
Echolation is so accurate that with each chirp, a bat or dolphin can tell the location, size, direction and even the physical nature of an object.
Bat echolation
If you’re an insect flying 15-20 feet away from a bat in complete darkness - you’ve had it! Remarkably, bats prevent damage to their own ears by closing them with every wing stroke.
Dolphin echolation
An echolating dolphin can detect a 2.5 cm object, such as a big coin, from over 70 metres away.

3-
Best rain detector – The elephant
Elephants have an exceptional sense of hearing (and smell) and can hear at frequencies twenty times lower than us.  They also use their trunk and feet to hear, both of which are packed with special receptors to pick up on low frequency vibrations. Their exceptional hearing ability helps them ‘tune into’ things such as thunderstorms and explains the well observed phenomenon that elephants are always the first animals to move towards rain. And it is believed their low rumble calls can be picked up by other elephants 6 km away.  One essential reason for such long distance conversation is for females to be able to make as many males in the area aware that she is ready to mate – something that happens only a few days every 2-4 years.

4-
Best navigator using sound – The pigeon
Like elephants, pigeons can hear sounds at exceptionally low frequencies and this helps to explain their exceptional sense of direction. For example, steep hillsides reflect airbourne sound waves horizontally, providing a unique low-frequency beacon that pigeons can perceive for hundreds of miles. And there is vast source of such infra-sound in nature - thunderstorms, seismic activity, even the motion of the sea – allowing pigeons to build an acoustic landscape which is totally unknown to us. Pigeons also possess the equivalent of an in-built compass which allows them to navigate using the Earth’s magnetic field and the position of the Sun. In combination with their hearing – this makes them, probably, the best navigators in nature.
 
5- Cats vs. dogs – Cats
Cats win. Not only can they hear higher frequencies than us (and dogs), they can distinguish a sound’s tone and locate its source far better too. With 30 different muscles, the cat can independently rotate each of its ears 180 degrees, and position one ear or both facing any sound the cat detects. And thanks to their shape, sound gets funnelled down to a cat’s middle ear extremely effectively. So effectively, in fact, that from a metre away your average moggy can easily distinguish the sound of you opening the door to the cat food cupboard from the sound of you opening the cupboard door next to it.

6-
Best hearing defence – The tiger moth
Bats use echolation – (read above) – to detect prey in the dark.  However some moths, such as the tiger moth have evolved super sensitive ears that can hear bats ultrasonic chirps. So when they hear a bat closing in on them – they can take evasive action, often resulting in a dramatic aerial acrobatic contest between predator and prey; which, more often than not, the bat would win. So moths got smarter. Instead of just taking evasive action, they emitted sound back to bat, often emitting as many as 450 clicks in 1/10th of a second. Such action effectively jams the bat’s sonar and confuses them, allowing the moth to fly another day.

- The albatross
- The Bear

Animals with the best sense of smell in the world

1– Champion sniffer – The bear
A bear’s brain is a third of the size of ours, yet the part devoted to smell is five times larger. They possess big noses and the inside surfaces of their nostrils are enlarged with folds that make room for thousands of smell receptors. Their sense of smell is certainly better than a bloodhound’s and, quite possibly, is the best of any land animal.

2- Best lunch detector – The Shark
Two-thirds of a shark’s brain is dedicated to smell and it can detect the tiniest drop of blood from more than a mile away. Astonishingly even uninjured fish are not safe from a shark’s surveillance. A merely nervous fish emits chemicals to warn others.  Unfortunately for them, these signals can be picked up by…yep, you’ve guessed it.

3- Best ‘mate’ detection – The Moth
Imagine being able to sniff your future wife from 6-7 miles away. Well, that’s what a moth does using its feathery antennae.

4- Best detective – The dog (Bloodhound)
A bloodhound can stay on the trail of a person after several days, even if that person has walked through busy shopping centres and streets. In fact their sense of smell is so good, it’s better than the best man-made odour detecting machines. Some dogs can even detect certain types of cancer and they do so with greater accuracy than state-of-the-art screening equipment.
 
5- Best air sniffer - The snake
We’ve all seen a snake flick out its tongue. They do this because, unlike us, they smell with them. So when a snake starts flicking its tongue rapidly, it’s a sure sign it has smelt something interesting in the air.
 
6- Best landmine detector – The rat
Like dogs, rats can be trained to use their exceptional sense of smell - they can smell in stereo with each nostril working independently of the other - to detect land mines. In a test on a real minefield, a team of six giant Gambian pouched rats found all 20 hidden land mines. The great advantage of using rats is that they’re cheaper to keep and train than dogs.
The Nigerian Army can employ this in the fight against Boko Haram insurgency

7- Best bird sense of smell – The albatross
Most birds rely on keen eyesight and have a poor sense of smell. The albatross is one of the exceptions. This great bird spends its time hovering above the ocean on the look out for food. And to help it do this, it has an extra-large nose on top of its beak. This over-sized honk helps the albatross detect food floating on the sea, even when it is dark.

SkyBlue1:
And to think we are still racing to catch up with the past . . . .

Whoever says one shudnt luk back to d past doesn't knw d story of naija

Swissheart:
She is beautiful

Same wid u

Babalawal:
ajaokuta...d light is d best. a week without a blink

Hmmm... 1 week? n u say it's d best...

I served in Bonny, stayed der 1year plus n der was no blackout 4 a second

zerray:
There's a call for qualified primary and secondary school teachers for an after-school program. Ideal candidates must have a bachelor's degree, content knowledge of multiple subjects and be computer literate.

The after school program is for students with diverse learning styles and needs. To apply, email a copy of your CV and accompanying documents to rsetfoundation@gmail.com.

Please Note: This opportunity is only open for those living in Abuja.

Thanks

Please can we talk? It's urgent. Flash my line 08167227337 and I'll call u back. Or we cud chat on BBM 2AE3A131.

Thanks 4 ur prompt response

Please does any1 know any good school within Abuja dat pays well and in need of a teacher?

Please drop d school's address.

Please dis is urgent.

Nairalanders help a broda

Greatest Gabrielite...

...Everly soaring high

I'm proud 2 be a Gabrielite...

Long live Mount Saint Gabriel’s Secondary School Makurdi...

Long live Rev. fr. Angus Fraser...

Long live d Federal Republic of Nigeria

Hu eva gets bust: 34+ and hips: 40+....relax, u d winner

2ae3a131

More info...job requirements...pay pack etc...wil do

ohosi4real:
Senator and top men in Nigeria have send their candidate to AU head quarter. If u don't no any senator or big man 4 get about the work.
God help us

Guy, kill dis kind of mentality. If u so nt bliv in God don't create disbelief 4 other...kip all such negativity to ursef. If u can't drop hopeful comments...jus stay off does keypads. U mustn't comment. Tnx

Sales Rep or executive cleaner wizzypromzy88@gmail.com I reside in Abuja

Do you need a qualified mathematics tutor who is vast in other basic sciences in Abuja for your wards, contact me on wizzypromzy88@gmail.com. Thanks

Holyfield1:
Happy birthday o! May u live to proclaim the goodness of God in ur life

#Make I dash u 1 like

tnx boss...

stellytwinkle:
1000 is too small, why not 10000000, u deserve it dear

Tnk dear...

...indeed angels are amongst us

IceDude:
If i give u like will u give me cake?

Yes Sir

Holyfield1:
Kopis Kopis...Because I requested for a thousand like the other day abi...Chai

No kopis kopis oo...bin wanna ask 4 a million bt reasoning it ain't gon b possible since dis ain't weekend

Bt nt 2 worry...modify button stil available...

#staraiming

God wil help her 2 b found...hale n hearty

Btw it's my birthday 2day...God b praised

Na dem biz...

Shameful way 2 hustle

Hardworking fada...

...Good example 2 his children

Good 4 dem

Ok

See my guy...

...luvli outfit

Shoooooh...

I can't fit shout

Ok

Fine woman

MODIFIED

It's my birthday 2dai...just a 1000 LIKES and it's ok

Fine woman

Tukor32:
they must surely meet their waterloo IJN..give me some likes to spark my birthday

Happy birthday 2 u....

....Happy birthday 2 us