Ornamented dragonflies better equipped to survive human threats
A study by Kim Medley and others found that dragonflies with dark wing markings have a lower risk of extinction.
A study by Kim Medley and others found that dragonflies with dark wing markings have a lower risk of extinction.
Plants & Animals
Jul 29, 2024
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NASA has confirmed its Dragonfly rotorcraft mission to Saturn's organic-rich moon Titan. The decision allows the mission to progress to the completion of the final design, followed by the construction and testing of the entire ...
Space Exploration
Apr 17, 2024
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A trio of biologists at the University of Colorado has found that dragonflies that cover themselves in a waxy coating fare better as the climate grows warmer and drier in regions where they live. In their study, published ...
Like a moth to flame, many scientists and poets have long assumed that flying insects were simply, inexorably drawn to bright lights.
Ecology
Jan 30, 2024
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A damselfly species that came to the UK from Europe poses a minimal risk to native damselflies and dragonflies, new research shows.
Plants & Animals
Feb 9, 2023
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When NASA's 990-pound Dragonfly rotorcraft reaches the Selk crater region—the mission's target touchdown spot—on Saturn's moon Titan in 2034, Cornell's Léa Bonnefoy will have helped to make it a smooth landing.
Space Exploration
Sep 28, 2022
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A trio of researchers, two with Cornell University, the other with Howard Hughes Medical Institute, has discovered the means by which dragonflies are able to right themselves so quickly from an upside-down orientation. In ...
The Dragonfly telescope is undergoing a metamorphosis.
Astronomy
Mar 10, 2022
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Can dragonflies migrate thousands of miles across the Indian Ocean, from India via the Maldives to Africa, and back again? An international research team led by Lund University in Sweden has used models and simulations to ...
Plants & Animals
Oct 4, 2021
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Dragonfly wings, lotus leaves, cicada wings—thanks to millennia of evolution, nature has optimized the ways these surfaces and others behave to offer antibacterial functionality.
Condensed Matter
Apr 6, 2021
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A dragonfly is a winged insect belonging to the order Odonata, the suborder Epiprocta or, in the strict sense, the infraorder Anisoptera (from Greek ανισος anisos, "uneven" + πτερος pteros, "wings", due the hindwing being broader than the forewing). It is characterized by large multifaceted eyes, two pairs of strong transparent wings, and an elongated body. Dragonflies are similar to damselflies, but the adults can be differentiated by the fact that the wings of most dragonflies are held away from, and perpendicular to, the body when at rest. Dragonflies possess six legs (like any other insect), but most of them cannot walk well. Dragonflies are some of the fastest insects in the world.
Dragonflies are valuable predators that eat mosquitoes, and other small insects like flies, bees, ants, wasps, and very rarely butterflies. They are usually found around marshes, lakes, ponds, streams, and wetlands because their larvae, known as "nymphs", are aquatic.
This text uses material from Wikipedia, licensed under CC BY-SA