Please refer to the appropriate style manual or other sources if you have any questions. The dragon represents the four elements of change, transformation, adaptability, and self-realization, which are present in all countries. [20] In Kamchatka, only a few species of dragonfly including the treeline emerald Somatochlora arctica and some aeshnids such as Aeshna subarctica are found, possibly because of the low temperature of the lakes there. "[112], The novelist H. E. Bates described the rapid, agile flight of dragonflies in his 1937 nonfiction book[113] Down the River:[114], I saw, once, an endless procession, just over an area of water-lilies, of small sapphire dragonflies, a continuous play of blue gauze over the snowy flowers above the sun-glassy water. Symbolism of Dragonfly by "Dragonfly" (nonprofit organization helping pediatric cancer families), International Union for Conservation of Nature, "Phylum Arthropoda von Siebold, 1848 In: Zhang, Z.-Q. It depends. The distribution of diversity within the biogeographical regions are summarized below (the world numbers are not ordinary totals, as overlaps in species occur). They cover most of the head and come together at the top. Their hunting methods vary. They hunt in flight, are highly manoeuvrable and even mate mid-air. Many dragonflies have brilliant iridescent or metallic colours produced by structural colouration, making them conspicuous in flight. Only dragonfly nymphs have internal gills, called a branchial chamber, located around the fourth and fifth abdominal segments. Water mites, Hydracarina, can kill smaller dragonfly nymphs, and may also be seen on adults. Long before the dinosaurs roamed the Earth, dragonflies took to the air. How this animal can survive is a mystery. Odonata (dragonflies and damselflies) as a bridge between ecology and Dragonfly nymphs may swallow cercariae, or these may tunnel through a nymph's body wall; they then enter the gut and form a cyst or metacercaria, which remains in the nymph for the whole of its development. This may also help to avoid desiccation. [12], Dragonflies live on every continent except Antarctica. [68], The flight muscles need to be kept at a suitable temperature for the dragonfly to be able to fly. Dragonflies can reach speeds of up to 35 miles an hour and fly just as gracefully backward by lifting off vertically, helicopter style. 5, 2023, thoughtco.com/fascinating-facts-about-dragonflies-1968249. Being cold-blooded, they can raise their temperature by basking in the sun. By Nanette Kelley. Pupke, Chris. [111] Hori Bakusui (17181783) similarly wrote "Dyed he is with the / Colour of autumnal days, / O red dragonfly. The wings of dragonflies are mainly composed of veins and membranes, a typical nanocomposite material. Like all insects, dragonflies are technically ectotherms ("cold-blooded"), but that doesn't mean they're at the mercy of Mother Nature to keep them warm or cool. Articles from Britannica Encyclopedias for elementary and high school students.

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