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Gallus gallus is a domesticated bird known as the chicken which is believed to have first bred in southeast Asia. Ever since Darwin, we have known that the chicken originated in southeast Asia, although the exact details of which one or more of several possible jungle fowls is the primal form has been debated. The idea that the existence of chicken is the contribution of more than one wild species has been on the table for a very long time. Notice the yellow legs on this chicken. If you pluck out the feathers, you will find the skin to be yellow as well. But if you go find, say, a crow, and pluck its feathers, it will be greyish in colour. The gist of this is that some birds are yellow while some are not.
There is a gene that is expressed in certain tissues that produces an enzyme that cleaves the carotenoid molecules that provide the yellow colour. You get a yellow bird (depending on other factors we shall ignore) if there is no functional copy of this gene. In short, it is confirmed by the new research that previously thought the red jungle fowl, Gallus gallus, is ancestral to the modern chicken, as Darwin suspected. But this research also suggests that another bird, the grey jungle fowl, Gallus sonneratii, also contributed to the chicken's genome, providing the yellow color we see on this chicken's legs.

In this sub category you can download free PNG images: Chicken Food. In this category "Chicken" we have 108 free PNG images with transparent background.



  • Images Chicken Fried Wings Download HQ PNG Image

    Images Chicken Fried Wings Download HQ
    Format: PNG
    Resolution: 798x1024
    Size: 539.1KB
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  • Chicken Fried Wings Free HQ Image PNG Image

    Chicken Fried Wings Free HQ Image
    Format: PNG
    Resolution: 820x385
    Size: 301.8KB
    Downloads: 98
  • Grill Chicken Barbecue Free HD Image PNG Image

    Grill Chicken Barbecue Free HD Image
    Format: PNG
    Resolution: 1795x1322
    Size: 4.9MB
    Downloads: 61
  • Barbecue Chicken Coal Download HQ PNG Image

    Barbecue Chicken Coal Download HQ
    Format: PNG
    Resolution: 658x421
    Size: 494.5KB
    Downloads: 64
  • Barbecue Chicken Drumstick PNG File HD PNG Image

    Barbecue Chicken Drumstick PNG File HD
    Format: PNG
    Resolution: 500x305
    Size: 201.5KB
    Downloads: 80
  • Barbecue Chicken Black Grill Download Free Image PNG Image

    Barbecue Chicken Black Grill Download Free Image
    Format: PNG
    Resolution: 504x512
    Size: 197.1KB
    Downloads: 71
  • Barbecue Chicken Grill Download HQ PNG Image

    Barbecue Chicken Grill Download HQ
    Format: PNG
    Resolution: 750x500
    Size: 606.2KB
    Downloads: 76
  • Barbecue Chicken Download Free Image PNG Image

    Barbecue Chicken Download Free Image
    Format: PNG
    Resolution: 672x430
    Size: 275.3KB
    Downloads: 100
  • Barbecue Chicken Pork Free HQ Image PNG Image

    Barbecue Chicken Pork Free HQ Image
    Format: PNG
    Resolution: 960x677
    Size: 1.2MB
    Downloads: 52
  • Barbecue Chicken Roasted Free Download Image PNG Image

    Barbecue Chicken Roasted Free Download Image
    Format: PNG
    Resolution: 550x300
    Size: 292.2KB
    Downloads: 45
  • Barbecue Chicken Seekh HD Image Free PNG Image

    Barbecue Chicken Seekh HD Image Free
    Format: PNG
    Resolution: 700x389
    Size: 100.9KB
    Downloads: 86
  • Barbecue Chicken Serving Download HD PNG Image

    Barbecue Chicken Serving Download HD
    Format: PNG
    Resolution: 800x459
    Size: 142.2KB
    Downloads: 84
  • Barbecue Chicken Vector Free Download PNG HD PNG Image

    Barbecue Chicken Vector Free Download PNG HD
    Format: PNG
    Resolution: 612x603
    Size: 311.8KB
    Downloads: 88
  • Barbecue Chicken Vector Seekh Free Clipart HD PNG Image

    Barbecue Chicken Vector Seekh Free Clipart HD
    Format: PNG
    Resolution: 514x481
    Size: 65.9KB
    Downloads: 92
  • Barbecue Chicken Vector Free Clipart HQ PNG Image

    Barbecue Chicken Vector Free Clipart HQ
    Format: PNG
    Resolution: 512x512
    Size: 30.9KB
    Downloads: 53
  • Coal Chicken Barbecue Free Photo PNG Image

    Coal Chicken Barbecue Free Photo
    Format: PNG
    Resolution: 1200x700
    Size: 789.9KB
    Downloads: 72
  • Drumstick Chicken Barbecue HQ Image Free PNG Image

    Drumstick Chicken Barbecue HQ Image Free
    Format: PNG
    Resolution: 1280x1121
    Size: 217.4KB
    Downloads: 66
  • Barbecue Chicken Roasted PNG Download Free PNG Image

    Barbecue Chicken Roasted PNG Download Free
    Format: PNG
    Resolution: 1962x563
    Size: 431.2KB
    Downloads: 93
  • Barbecue Chicken Serving Free Transparent Image HQ PNG Image

    Barbecue Chicken Serving Free Transparent Image HQ
    Format: PNG
    Resolution: 900x473
    Size: 635.4KB
    Downloads: 97
  • Chicken Crunchy Kfc Free Clipart HQ PNG Image

    Chicken Crunchy Kfc Free Clipart HQ
    Format: PNG
    Resolution: 1400x1028
    Size: 528.9KB
    Downloads: 71