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Questions tagged [symmetry]

Symmetry is the balanced distribution of duplicate body parts or shapes within the body of an organism.

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1answer
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Are there certain symmetric-pair muscles that are slightly bigger and NOT due to handedness?

Ok, hear me out, I was just thinking about an article in Nature I read in the past titled "Scrotal asymmetry in man and in ancient sculpture"$^{\dagger}$ and more recently an entire medical textbook ...
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2answers
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Why is the heart not in the middle of the body?

All mammals that I can think of have a high degree of bilateral symmetry (In fact, almost every animal I can think of is like this). So why is the human heart not exactly in the middle of the body? ...
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2answers
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What is bilateral symmetry in “bilateria”, an actual symmentry

Wikipedia defines bilateria as : animals with bilateral symmetry, i.e., they have a head ("anterior") and a tail ("posterior") as well as a back ("dorsal") and ...
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3answers
5k views

What is Biradial Symmetry?

I am trying to visualize biradial symmetry. I have read the section in the Wiki entry on Symmetry in Biology but it is quite brief and there is no example to illustrate it. I haven’t been able to find ...
3
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0answers
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Why might the chirality of gastopods be dominantly dextral?

This wikipedia page on gastropods provides a definition of chirality, and briefly describes the genetic mechanisms behind why a shell is wound left (sinistral) or right (dextral) handed. It also ...
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0answers
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How symmetrical can an organism be?

The majority of living things have some form of symmetry. Many mammals and fish have bi-symmetry, and anemones, starfish and jellyfish (among others) have radial symmetry. However, there usually are ...