A frog is any member of a largely carnivorous and diverse group of tailless, short-bodied amphibians that belong to the order Anura which literally means without tail in Ancient Greek. The oldest fossil called "proto-frog" was found in the early Triassic of Madagascar, but molecular clock dating suggests their origins may extend further back to the Permian, which was 265 million years ago. Ranging from the tropics to subarctic regions, frogs are widely distributed, but the greatest concentration of diversity of the species is in tropical rainforests. There are over 6,300 recorded species that account for about 88% of extant amphibian species. They also belong to one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, however, the distinction between frogs and toads is informal and not from terminology or evolutionary history. An adult frog has protruding eyes, anteriorly-attached tongue, a stout body with limbs folded underneath and no tail (except in tailed frogs). Frogs have glandular skin which have secretions that range from distasteful to toxic. Their skin varies in colour from grey, green and well-camouflaged dappled brown to vivid patterns of bright red or yellow and black to exhibit toxicity and ward off predators. Adult frogs live on dry land or in fresh water and some species are adapted for living underground or in trees.

In this sub category you can download free PNG images: Frog Animals. In this category "Frog" we have 101 free PNG images with transparent background.

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  The Frog Kermit Free HD Image
  Format: PNG
  Resolution: 728x557
  Size: 361.4KB
  Downloads: 85
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  Keroppi Frog Download HD
  Format: PNG
  Resolution: 1131x1316
  Size: 252.8KB
  Downloads: 96
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  Keroppi Frog Free HQ Image
  Format: PNG
  Resolution: 900x600
  Size: 234.2KB
  Downloads: 52
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  The Pepe Frog Sad PNG Free Photo
  Format: PNG
  Resolution: 840x564
  Size: 197.9KB
  Downloads: 61
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  The Pepe Frog Sad Free Download PNG HD
  Format: PNG
  Resolution: 474x354
  Size: 126.6KB
  Downloads: 90
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  The Pepe Frog Sad Free Transparent Image HQ
  Format: PNG
  Resolution: 500x500
  Size: 10.7KB
  Downloads: 72
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  The Pepe Frog Sad HD Image Free
  Format: PNG
  Resolution: 820x799
  Size: 369.2KB
  Downloads: 46
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  Images The Frog Kermit Free Download PNG HD
  Format: PNG
  Resolution: 910x694
  Size: 493.4KB
  Downloads: 70
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  Keroppi Frog HD Image Free
  Format: PNG
  Resolution: 910x512
  Size: 173.6KB
  Downloads: 69
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  Amphibian Frog HQ Image Free
  Format: PNG
  Resolution: 1370x985
  Size: 1.6MB
  Downloads: 92
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  Frog Transparent Background
  Format: PNG
  Resolution: 2400x2185
  Size: 624.3KB
  Downloads: 419
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  Keroppi Frog Free Clipart HD
  Format: PNG
  Resolution: 920x891
  Size: 343.9KB
  Downloads: 45
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  Frog Png Image
  Format: PNG
  Resolution: 2468x1163
  Size: 796.3KB
  Downloads: 686
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  The Frog Kermit Free Download PNG HD
  Format: PNG
  Resolution: 860x959
  Size: 410.8KB
  Downloads: 88
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  The Pepe Frog PNG File HD
  Format: PNG
  Resolution: 880x652
  Size: 231.7KB
  Downloads: 62
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  Frog Png 7
  Format: PNG
  Resolution: 1331x683
  Size: 1005.1KB
  Downloads: 333
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  The Frog Kermit Free HQ Image
  Format: PNG
  Resolution: 820x512
  Size: 191.0KB
  Downloads: 54
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  Keroppi Frog Picture PNG Free Photo
  Format: PNG
  Resolution: 490x509
  Size: 152.0KB
  Downloads: 75
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  Picture The Frog Kermit Free Clipart HD
  Format: PNG
  Resolution: 577x522
  Size: 378.2KB
  Downloads: 97
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  Azureus Frog
  Format: PNG
  Resolution: 800x677
  Size: 202.7KB
  Downloads: 384

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