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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  Frog Png 9
  Format: PNG
  Resolution: 400x310
  Size: 251.0KB
  Downloads: 448
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  Frog Transparent Background
  Format: PNG
  Resolution: 2400x2185
  Size: 624.3KB
  Downloads: 419
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  Frog Png 5
  Format: PNG
  Resolution: 3988x2726
  Size: 6.4MB
  Downloads: 411
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  Frog Png Image
  Format: PNG
  Resolution: 2593x1589
  Size: 790.0KB
  Downloads: 399
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  Frog Png 6
  Format: PNG
  Resolution: 600x350
  Size: 158.2KB
  Downloads: 398
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  Frog File
  Format: PNG
  Resolution: 532x509
  Size: 300.4KB
  Downloads: 394
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  Azureus Frog
  Format: PNG
  Resolution: 800x677
  Size: 202.7KB
  Downloads: 384
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  Frog Clip Art
  Format: PNG
  Resolution: 564x563
  Size: 133.3KB
  Downloads: 357
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  American Green Tree Frog
  Format: PNG
  Resolution: 539x600
  Size: 209.6KB
  Downloads: 352
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  Cartoon Frog
  Format: PNG
  Resolution: 576x597
  Size: 125.7KB
  Downloads: 350
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  Frog Transparent
  Format: PNG
  Resolution: 1535x1094
  Size: 2.3MB
  Downloads: 346
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  Frog Clipart
  Format: PNG
  Resolution: 1024x1024
  Size: 153.8KB
  Downloads: 342
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  Frog Photos
  Format: PNG
  Resolution: 2239x1432
  Size: 711.0KB
  Downloads: 337
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  Frog Png 7
  Format: PNG
  Resolution: 1331x683
  Size: 1005.1KB
  Downloads: 333
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  Frog Transparent Image
  Format: PNG
  Resolution: 600x350
  Size: 158.2KB
  Downloads: 323
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  Pine Barrens Tree Frog
  Format: PNG
  Resolution: 2314x1704
  Size: 2.8MB
  Downloads: 318
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  Frog Image
  Format: PNG
  Resolution: 1144x804
  Size: 706.3KB
  Downloads: 311
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  Photos The Frog Kermit PNG Image High Quality
  Format: PNG
  Resolution: 860x912
  Size: 418.4KB
  Downloads: 97
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  Picture The Frog Kermit Free Clipart HD
  Format: PNG
  Resolution: 577x522
  Size: 378.2KB
  Downloads: 97
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  Picture The Pepe Frog Sad
  Format: PNG
  Resolution: 2894x2300
  Size: 162.3KB
  Downloads: 97

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