A dragonfly is an insect belonging to the order Odonata, infraorder Anisoptera. Adult dragonflies are characterized by large, multifaceted eyes, two pairs of strong, transparent wings, sometimes with coloured patches, and an elongated body. Dragonflies can be mistaken for the related group, damselflies, which are similar in structure, though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold the wings folded at rest, along or above the abdomen. Dragonflies are agile fliers, while damselflies have a weaker, fluttery flight. Many dragonflies have brilliant iridescent or metallic colours produced by structural coloration, making them conspicuous in flight. An adult dragonfly`s compound eyes have nearly 24,000 ommatidia each.
圖片編號:
109052155
拍攝者:
Chriskiely
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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 534 | JPG | 15 | |
標準授權 | M | 2119 x 1415 | JPG | 18 | |
標準授權 | L | 3104 x 2072 | JPG | 20 | |
標準授權 | XL | 3461 x 2310 | JPG | 22 | |
標準授權 | MAX | 4239 x 2830 | JPG | 23 | |
標準授權 | TIFF | 4390 x 2930 | TIF | 39 | |
進階授權 | UEL | 4239 x 2830 | JPG | 88 |
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S
M
L
XL
MAX
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標準授權 | 480 x 320 px | JPG | 13 點 |
標準授權 | 800 x 534 px | JPG | 15 點 |
標準授權 | 2119 x 1415 px | JPG | 18 點 |
標準授權 | 3104 x 2072 px | JPG | 20 點 |
標準授權 | 3461 x 2310 px | JPG | 22 點 |
標準授權 | 4239 x 2830 px | JPG | 23 點 |
標準授權 | 4390 x 2930 px | TIF | 39 點 |
進階授權 | 4239 x 2830 px | JPG | 88 點 |