Amphibians are a class of cold-blooded vertebrates that spend their lives both in water and on land. They are characterized by their smooth, moist skin, which allows them to breathe through their skin. Amphibians undergo metamorphosis, starting as aquatic larvae and developing into terrestrial adults. They are important indicators of environmental health, as they are sensitive to changes in their habitat. Unfortunately, many amphibian populations are declining due to habitat loss, pollution, and disease. Some well-known amphibians include frogs, toads, salamanders, and newts. Despite their challenges, amphibians continue to fascinate scientists and nature enthusiasts alike.
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277363904
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Manp8877
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 480 x 320 | JPG | 13 | |
標準授權 | S | 800 x 533 | JPG | 15 | |
標準授權 | M | 2121 x 1414 | JPG | 18 | |
標準授權 | L | 2738 x 1825 | JPG | 20 | |
標準授權 | XL | 3464 x 2309 | JPG | 22 | |
標準授權 | MAX | 8064 x 5376 | JPG | 23 | |
標準授權 | TIFF | 11404 x 7603 | TIF | 39 | |
進階授權 | WEL | 8064 x 5376 | JPG | 88 | |
進階授權 | PEL | 8064 x 5376 | JPG | 88 | |
進階授權 | UEL | 8064 x 5376 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
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UEL
標準授權 | 480 x 320 px | JPG | 13 點 |
標準授權 | 800 x 533 px | JPG | 15 點 |
標準授權 | 2121 x 1414 px | JPG | 18 點 |
標準授權 | 2738 x 1825 px | JPG | 20 點 |
標準授權 | 3464 x 2309 px | JPG | 22 點 |
標準授權 | 8064 x 5376 px | JPG | 23 點 |
標準授權 | 11404 x 7603 px | TIF | 39 點 |
進階授權 | 8064 x 5376 px | JPG | 88 點 |
進階授權 | 8064 x 5376 px | JPG | 88 點 |
進階授權 | 8064 x 5376 px | JPG | 88 點 |