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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  Amphibian Frog Download Free Image
  Format: PNG
  Resolution: 512x512
  Size: 52.5KB
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  Amphibian Frog Download HD
  Format: PNG
  Resolution: 641x384
  Size: 374.5KB
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  Amphibian Frog PNG File HD
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  The Pepe Frog Sad Free Photo
  Format: PNG
  Resolution: 920x679
  Size: 278.0KB
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  Keroppi Frog Picture PNG Free Photo
  Format: PNG
  Resolution: 490x509
  Size: 152.0KB
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  The Pepe Frog HD Image Free
  Format: PNG
  Resolution: 900x774
  Size: 274.8KB
  Downloads: 74
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  Pic Amphibian Frog Download HQ
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  Resolution: 1024x700
  Size: 642.8KB
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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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  Keroppi Frog Free HQ Image
  Format: PNG
  Resolution: 842x730
  Size: 219.5KB
  Downloads: 72
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  Images The Frog Kermit Free Download PNG HD
  Format: PNG
  Resolution: 910x694
  Size: 493.4KB
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  The Pepe Frog Sad Download HQ
  Format: PNG
  Resolution: 500x565
  Size: 185.3KB
  Downloads: 70
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  Keroppi Frog HD Image Free
  Format: PNG
  Resolution: 910x512
  Size: 173.6KB
  Downloads: 69
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  The Pepe Frog Download HD
  Format: PNG
  Resolution: 840x699
  Size: 217.5KB
  Downloads: 65
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  The Pepe Frog PNG File HD
  Format: PNG
  Resolution: 880x652
  Size: 231.7KB
  Downloads: 62
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  The Pic Pepe Frog Sad
  Format: PNG
  Resolution: 1092x1037
  Size: 26.9KB
  Downloads: 62
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  Amphibian Frog Download Free Image
  Format: PNG
  Resolution: 1400x896
  Size: 1.4MB
  Downloads: 62
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  Amphibian Frog Free PNG HQ
  Format: PNG
  Resolution: 2943x1866
  Size: 5.3MB
  Downloads: 62
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  The Pepe Frog Sad Free HQ Image
  Format: PNG
  Resolution: 578x537
  Size: 218.1KB
  Downloads: 61
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  The Pepe Frog Sad PNG Free Photo
  Format: PNG
  Resolution: 840x564
  Size: 197.9KB
  Downloads: 61
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  Amphibian Frog Free HD Image
  Format: PNG
  Resolution: 1535x1094
  Size: 2.9MB
  Downloads: 60

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