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Q.

Why eggs are always oval?

Tags: science
Asked by Banke Lal, 12 Dec '11 02:45 pm
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Answers (9)

1.

Most bird eggs have an oval shape, with one end rounded (the aerus) and the other more pointed (the taglion). This shape results from the egg being forced through the oviduct. Muscles contract the oviduct behind the egg, pushing it forward. The egg's wall is still shapeable, and the pointy end develops at the back. Cliff-nesting birds often have highly conical eggs. They are less likely to roll off, tending instead to roll around in a tight circle; this trait is likely to have arisen due to evolution via natural selection. In contrast, many hole-nesting birds have nearly spherical eggs.
Source: egg biology//
Answered by LIPSIKA, 12 Dec '11 02:51 pm

 
  
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2.

So that they fit perfectly into the shape of the egg cup, when being served for breakfast
Answered by Vikram, 12 Dec '11 03:02 pm

 
  
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3.

Eggs didnot have the shell when it was inside the body of the hen hence shapeless. To lay it the egg has to pass through an elastic tube having a peristalsis wave which propels it out wards. when it meets the anal sphincter more pressure is required to push it out thereafter as the egg passes out and with the contraction of the sphincter the later part of the egg get taperred off gradually thus it becomes oval. As it passes through the elastic tube it acquires its shell and finally becomes hard with the exposure to atmosphere. This explains its oval shape.
Answered by ankit shivam, 12 Dec '11 02:47 pm

 
  
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4.

So that insiders will not cut corner!
Answered by dinkar shetty, 12 Dec '11 03:24 pm

 
  
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5.

The conical shape a egg assume due to contraction pressure of cloaca muscle while laying the egg, when the egg shell is not hard
Answered by Sneh, 12 Dec '11 03:02 pm

 
  
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6.

Did you ever see a round bird?
The oval shape matches closely the baby bird's figure
Answered by Tanupriya, 12 Dec '11 02:48 pm

 
  
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7.

.....because bananas r always straight.
Answered by ashok sharma, 12 Dec '11 02:47 pm

 
  
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8.

Ha ha :-) Because Sandwich is always Triangular :D

Eggs come in different colours. They may be blue, blue-green, yellow, spotted, blotched or white. No egg looks identical. Even those eggs that are laid in a clutch or at one time may have different colours. Most eggs are oval, and sometimes they are long and elongated. One end is slightly larger and heavier while the other end is smaller and conical.

The shape of the egg has an important use. It protects the chick inside, until it is time for it to break out of its shell. For, even if you press from the outside, the shell will not break unless the chick inside presses too. The chick does it by tapping from inside with its soft beak when it is ready to face the world.

How does the chick come out? Baby birds in fact have an 'egg tooth'. This is a tiny knob at the tip of the beak to help them break out of the shell. It takes a chick 30 minutes to an hour to break the shell. Some albatross chicks have been known to take five to si ...more
Answered by Nauty, 12 Dec '11 02:47 pm

 
  
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9.

The oval shape matches closely the baby bird's figure - the bird body is always going to be thicker than the head
Answered by Stone, 12 Dec '11 02:55 pm

 
  
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