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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Keroppi Frog Picture PNG Free Photo
Format: PNG
Resolution: 490x509
Size: 152.0KB
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Keroppi Frog Download HQ
Format: PNG
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Amphibian Frog HQ Image Free
Format: PNG
Resolution: 1370x985
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Amphibian Frog Download Free Image
Format: PNG
Resolution: 1400x896
Size: 1.4MB
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Amphibian Frog PNG File HD
Format: PNG
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Size: 711.7KB
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Amphibian Frog Free Photo
Format: PNG
Resolution: 667x441
Size: 200.3KB
Downloads: 55
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Pic Amphibian Frog Download HQ
Format: PNG
Resolution: 1024x700
Size: 642.8KB
Downloads: 73
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Amphibian Frog Download Free Image
Format: PNG
Resolution: 1008x632
Size: 640.8KB
Downloads: 92
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Amphibian Frog Download Free Image
Format: PNG
Resolution: 512x512
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Downloads: 81
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Picture Amphibian Frog Download HD
Format: PNG
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Photos Amphibian Frog Free HD Image
Format: PNG
Resolution: 1920x1554
Size: 397.1KB
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Amphibian Frog Download HD
Format: PNG
Resolution: 641x384
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Amphibian Frog Free PNG HQ
Format: PNG
Resolution: 2943x1866
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Amphibian Frog PNG Image High Quality
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Amphibian Frog Free HD Image
Format: PNG
Resolution: 2231x1313
Size: 3.2MB
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Amphibian Frog Free HD Image
Format: PNG
Resolution: 1535x1094
Size: 2.9MB
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Amphibian Frog Free HQ Image
Format: PNG
Resolution: 2173x1419
Size: 2.7MB
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Picture Amphibian Frog PNG Image High Quality
Format: PNG
Resolution: 2044x1323
Size: 2.5MB
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Images Amphibian Frog PNG File HD
Format: PNG
Resolution: 1570x1117
Size: 2.0MB
Downloads: 90
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Amphibian Frog Download HD
Format: PNG
Resolution: 1250x1055
Size: 2.0MB
Downloads: 54
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