Last week, it was widely reported that Rassim Khelifa from the University of Zurich in Switzerland discovered that female dragonflies sometimes fake sudden death to avoid male dragonflies.
|
|
It's at one of those pastoral Californian sites: summertime, dragonflies.
|
|
You might mistake jewel wings for their colorful cousins, dragonflies.
|
|
Aquatic plants hug the surface on the water, dragonflies hover and dance.
|
|
"I have never seen dragonflies swarm before, it was amazing!" she said.
|
|
Aquatic species such as stoneflies, mayflies, and dragonflies are also experiencing serious losses.
|
|
This includes birds, butterflies, dragonflies, bees, grasshoppers, spiders and large and small mammals.
|
|
The Island of Dragonflies seems to document the remnants of a mysteriously abandoned civilization.
|
|
Pickerel frogs patrolled the damp fringes, and dragonflies and damselflies darted among the lily pads.
|
|
"Both eyes work together as a continuous panorama," said Dr. Gonzalez-Bellido of such dragonflies.
|
|
So the purpose of it is like when dragonflies go up into the air to mate.
|
|
Plastic bottles poked out from the brush, but so did a flurry of butterflies and dragonflies.
|
|
Much of the entomology collection at the museum in Brazil was lost, including dragonflies and beetles.
|
|
They brought 63 male dragonflies back to their lab and immobilized them with a wax-rosin mixture.
|
|
Sapphire dragonflies flash by as they chase each other over ponds of tilapia dammed into the valley.
|
|
So the dragonflies were given a gene that adds light-sensitive proteins called opsins to the neurons.
|
|
An ancient ancestor's visual system helps dragonflies and jewel wing damselflies capture prey in very different ways.
|
|
To figure out how dragonflies were such effective hunters, Wiederman and O'Carroll decided to conduct a new study.
|
|
Other projects, like the one aiming to create cyborg dragonflies, could let other cyber insects roam the skies.
|
|
Dragonflies hunt in the open, in the bright sunlight, said Dr. Gonzalez-Bellido, where pinpoint accuracy is key.
|
|
You can imagine its dancers as dragonflies, fauns, larks — though any such illusions or allusions come and go.
|
|
"I had to catch dragonflies, grasshoppers, and that was the only source of protein for me," she recalls.
|
|
With electrodes attached to their brains, the dragonflies were shown a series of black squares intended to mimic prey.
|
|
Dragonflies buzz, darkly busy, reminiscent of drones, through these later paintings: insubstantial menaces whirring easily across Qureshi's curved earth.
|
|
Up in the hayloft, Ona asks the women if they know about the yearly sojourn of butterflies and dragonflies.
|
|
This eerie climb may contribute to their startling success rate: Dragonflies snag their prey 97 percent of the time.
|
|
The undulating blobs on the radar were not storm clouds or a weather system, but a swarm of dragonflies.
|
|
A lot of people get them confused with dragonflies, but damselflies are different, though they're in the same family.
|
|
Most of the dragonflies are Common Green Darners, she said, but several other species will also make the trip.
|
|
Anna Barnett said the dragonflies darted and circled all afternoon at the Mohican Hills Golf Club in Jeromesville, Ohio.
|
|
It has a big advantage over pesticides, which are more expensive and can harm other species, like bats and dragonflies.
|
|
They pollinate plants, consume decomposing bodies, eat the sludge in your drainpipes, damage crops, spread disease, kill spiders, hunt dragonflies.
|
|
Jewel wings best see what's right in front of them, they found, while dragonflies' clearest vision is just above them.
|
|
Ohio State University Entomology Professor Norman Johnson said the dragonflies were likely Green Darners, which migrate south in the fall.
|
|
Namely, its insects, from the brilliant wings of butterflies to the less-loved forms of beetles, grasshoppers, dragonflies, and cicadas.
|
|
The Woodberry Wetlands wildlife reserve is home to a variety of wildlife, among it kingfishers, reed warblers, wrens, bees and dragonflies.
|
|
Sometimes you climb up a mountain and find a tiny little lake, a weird little ecosystem with its dragonflies buzzing around.
|
|
During Soma Nomaoi, he photographed these fabrics in color, honing in on their patterns and symbolic imagery, from carps to dragonflies.
|
|
That suggests that jewel wings are summing up information from both eyes as they zip around, something dragonflies do not do.
|
|
He said the dragonflies don't usually travel in swarms like this, but local weather conditions can cause them to bunch up.
|
|
Their observations showed that dragonflies can lock onto a single target, and ignore any distractions as they dives in for the attack.
|
|
All freshwater molluscs and fish, as well as crabs and dragonflies, native to Africa's largest freshwater body are included on the red list.
|
|
Wild bees, dragonflies and glow-worms (and the birds which feed on them), threatened by intensive agriculture in western Europe, still thrive here.
|
|
The stitching on her gowns is heavy on woodsy motifs, and dragonflies show up frequently, as detailed by Michele Carragher, the show's embroiderer.
|
|
These insects' predators in the wild include birds, fish, lizards, and dragonflies, many of which are already vulnerable to hazards from discarded plastics.
|
|
Standing in the strong sun, mesmerized by the fluorescent blue dragonflies and wild lady slippers, I asked him for his 10-year plan.
|
|
Dragonflies also have impressive foveae, but their bodies are 10 times larger and can more easily accommodate many large lenses in their eyes.
|
|
For my source material, I originally looked around the land where I live, finding seeds, feathers, pollen, leaves, lichens, dragonflies, flower petals, and spiderwebs.
|
|
Mosquitoes are a critically important food source for fish (who eat their larvae), and many species of birds, dragonflies, spiders, salamanders, lizards, and frogs.
|
|
A few years ago, a neuroscientist named Anthony Leonardo invented the device to record the activity of dragonflies' brain cells as they hunt fruit flies.
|
|
The younger performers who would usually inhabit elaborate creature costumes have been stripped of their masquerade as frogs or dragonflies and appear simply as adolescents.
|
|
No, he actually ... Well, I mean he was touched with great talent in painting, but his ability to will himself to ask questions and be curious each day, the ability to push himself, to observe more carefully, go down to the moats around the castle and look at the dragonflies, full-wing dragonflies, to see if the wings alternate or whether they go in unison.
|
|
Image: WikimediaLike a baseball player running to make a catch, dragonflies are also capable of predicting the trajectory of a moving object, typically its next meal.
|
|
The spot is much bigger than what's typically seen in similar insects, and it probably wouldn't have fooled Y. huangi's predators, notably dragonflies with excellent vision.
|
|
Sheep, which when killed release dragonflies, which in turn allow Spyro to endure extra damage, are the almost equivalent of power-ups or hidden weapons caches.
|
|
The marsh attracts dragonflies; fly-catchers like the red-winged blackbird with its distinctive trill; and leggy wading birds, intent on the crabs and mummichogs below.
|
|
The team was intrigued to find that while jewel wing neurons didn't always respond like those in dragonflies, the number of neurons and organization were similar.
|
|
But it is also the fairy dust we have seen before in the novel: the mother's ashes flying into the air; the dragonflies in the rickshaw.
|
|
Outstretched arms and legs evoke wings; bent-leg jumps suggest gazelles; sudden arrivals on the floor with one leg and arm outstretched suggest butterflies or dragonflies.
|
|
Bugs spun in her water glass; mosquitoes and dragonflies were always diving into the Bog Girl's food and drink, as if in strange solidarity with her.
|
|
Over the course of less than eight minutes, some of the butterflies and dragonflies fly away; others begin dripping a rivulet of color down the scroll.
|
|
For example, members of the infamous Cordyceps family of fungi—over 400 different species in all—target various insect populations (ants, dragonflies, cockroaches, aphids, or beetles, usually).
|
|
In one miniature — a blue square of sky on gold backing — a swarm of dragonflies process from the left towards a blood-spattered massacre on the right.
|
|
It all comes down to a phenomenon called iridescence, which can also be seen in the wings of butterflies, dragonflies, cicadas, and in certain species of beetle.
|
|
He gained what he called a frog's-eye view of the changing seasons, and an intimate familiarity with the creatures sharing the moat, from dragonflies to newts.
|
|
Dragonflies only live a few months as adults, she said, so it will be up to future generations of the bugs to make the return trip north.
|
|
Khelifa learned that after mating once, female dragonflies lay their eggs and are ready to just go about whatever dragonfly business they need to deal with that day.
|
|
But please note that Sansa is still, even in season three, leaning into dragonflies, as seen on the clasp of her totally unassuming and unremarkable grayish mauve cloak.
|
|
He said researchers have found that the dragonflies travel an average of 8 miles (13 kilometers) per day, but can fly as far as 86 miles (140 kilometers).
|
|
They can lift and carry huge objects, fly around like dragonflies, and murder our families while we watch, their cold circuits flitting with nascent feelings of remorse and anger.
|
|
She is really interested in the countless other fly species, from the Antarctic to the Arctic, from predators that kill dragonflies on the wing to the tiny fungus gnats.
|
|
Yet there was no mistaking that this was peatland: Paths submerged into black goop, teams of dragonflies swarmed over the hot water, reeds and forest grew from their depths.
|
|
Sublime Frequencies' most bizarre release is "Broken Hearted Dragonflies: Insect Electronica from Southeast Asia," from 2004, which is essentially the unprocessed sounds of insects in Thailand, Burma, and Laos.
|
|
And in the four images of dragonflies below, AI hones in on colors and textures, seeing, from left to right, a skunk, a banana, a sea lion, and a mitten.
|
|
Sparklewing (Umma gumma) Location: Gabon Sixty new species of dragonflies and damselflies were reported in one single publication; that's the most for any single paper in more than 100 years.
|
|
Fans have theorized that this is a reference to a tale within the GoT world about the Prince of Dragonflies, a story about a Targaryen and a commoner named Jenny.
|
|
Looking at ants under a magnifying glass doesn't have anything on this macro vision of caterpillars, spiders, and dragonflies bathed in effervescent dew drops animated by CGI wunderkind Alexey Zakharov.
|
|
With bugs, it's not just about catching a bunch of random insects; kids in Japan go after a variety of certain bugs — dragonflies, cicadas, crickets, and kabutomushi (Japanese rhinoceros beetles).
|
|
TUCSON, Arizona — To stand at the edge Quitobaquito Springs — an oasis of cattails, dragonflies, turtles, and fish — is to behold the miracle of water in an otherwise dry expanse of desert.
|
|
Hip-hop was audible from a loudspeaker someone had wheeled onto the sidewalk, where little boys were racing little girls, dribbling a basketball and darting from shop to shop like dragonflies.
|
|
For the evening, the Lemonade legend chose a red long-sleeved dress with a plunging neckline that showed off her baby bump, donning an elaborate headdress adorned with butterflies, flowers and dragonflies.
|
|
Tracklist:Gary Numan - "Metal"Zoviet France - "Mohnomische 7"Prurient - "Dragonflies To Sew You Up"Lustmord - "Decompression"Wolf Eyes - "Human Animal"Cabaret Voltaire - "Nag, Nag, Nag"Coil - "Careful What You Wish For"Shapednoise ft.
|
|
Their wallowing holes become ponds where dragonflies breed, their rough coats spread seeds and burrs and their rooting opens up vegetation on the forest floor and affects the diversity of woodland plant species.
|
|
I am a huge, receptive visual instrument with a flexible lens, and I'm taking in the infinitude of all space and time and dragonflies and owls and life and roadkill and hydrogen gas.
|
|
"We know dragonflies go south, but as far as we are aware, there is not one specific site where they hang out, but instead they seem to just spread out southward," Spring said.
|
|
One blazing day on Sapelo, a dozen high school students from Putnam County, a poor, rural part of Central Georgia, sat in the back of a flatbed pickup with dragonflies swirling around their faces.
|
|
People still lived here: A mother bathed two children beneath a culvert, and a shirtless young boy ran through row after row of identical young palms in the distance, surrounded by dragonflies and sparrows.
|
|
He had spent a significant amount of time watching the dragonflies in the Swiss Alps, and was legit shook after realizing that yes, sometimes the females would fake their own deaths to avoid having sex.
|
|
The only human figure in the exhibition, a hazy self-portrait, shows the artist amidst tall plants, casually dressed in a T-shirt, up to his thighs in molten gold, with dragonflies flitting innocently overhead.
|
|
Next he wants to turn his bionic dragonflies into hybrid drones—what a collaborator describes as "a totally new kind of micro aerial vehicle that's smaller, lighter, and stealthier than anything else that's man-made."
|
|
So the rangers equipped themselves with nets and tranquilizer guns and fanned out into the jungles, full of pungent lantana bushes, old gnarled teak trees and clouds of dragonflies hovering in the thick, humid air.
|
|
The butterflies and dragonflies in the two-channel video "Chirping" (2016) have been transposed from the original scrolls onto copies, but all the writing and the artist's seal have been removed from the transferred images.
|
|
René Lalique and Boucheron used semitransparent plique-à-jour enamel — French for "letting in daylight" — to create dragonflies as airy as gossamer, or bejeweled honeybee brooches set en tremblant, on tiny springs that appeared to buzz.
|
|
Wolbachia bacteria exist naturally in some mosquito species, Dr. O'Neill said, and a walk around a tropical garden might turn up a host of other insects, including dragonflies, butterflies and fruit flies, that also carry the microbe.
|
|
Excavated in northern Myanmar, the specimen marks the first time that courtship behavior in "odonates"—the taxonomic order containing damselflies and dragonflies—has been identified in the fossil record, according to a new paper in Scientific Reports.
|
|
Kelly runs her own editing business, as well as the blog Chasing Dragonflies, where she talks about grief, family, and the death of her child Abigail (Abi), who died at age 12 following a sudden brain hemorrhage.
|
|
But, while you're in no danger of receiving an airfreighted Amazon package to your doorstep conveyed via an industrious team of Skeeter dragonflies, Caccia does reckon flapping wing tech holds promise for more than just stealthy surveillance microdrones.
|
|
But recordings made in the lab by Dr. Gonzalez-Bellido and her colleagues confirmed that dragonflies rise up in a straight line to seize unsuspecting insects from below, almost like their prey had stepped on a land mine.
|
|
Trouble is, the researchers had no idea how dragonflies were capable of knowing where moving objects would be in the future, mostly because insects weren't thought to have the requisite brain architecture to allow for such an advanced skill.
|
|
Herons swoop across your head, their elegance in mid-flight making you pause mid-stroke; dragonflies dance from lily pad to lily pad, flashes of blue in the gloom; even, on occasion, the mixed blessing of a nibbling fish.
|
|
Dragonflies play in the rushes growing in the fort's moat, and along the rim, which you can walk or drive along on a series of pathways, you can see that the fort is shaped like a five-pointed snowflake.
|
|
In a paper published this month in Current Biology, Dr. Gonzalez-Bellido and colleagues reveal that the neural systems behind jewel wings' vision are shared with dragonflies, with whom they have a common ancestor that lived before the dinosaurs.
|
|
But the group of insects that includes jewel wings and dragonflies took to the air long before birds were even on the evolutionary horizon, and their vision is swifter than any vertebrate's studied thus far, said Dr. Gonzalez-Bellido.
|
|
Reduced to dust and withered reeds when Saddam Hussein drained them to flush out rebels in the 1990s, the wetlands once again buzz with birds, dragonflies and the songs of buffalo-breeders, thanks to the devoted efforts of Iraqi conservationists.
|
|
I was always afraid of both of them, and I never understood when they came into fashion years later with teen-agers, who tattooed themselves with sentimental designs of dolphins and butterflies, and also those awful dragonflies with their blind eyes.
|
|
A basic Premier Double on the second floor was a comfortable, if compact, room with many nice touches: A door stop in the shape of a horse's head, dragonflies on the light fixtures, the obligatory blue-bottled Saratoga waters and leather headboards.
|
|
It is a concept fundamental in nature—birds fly south every winter in search of cloudless skies; fish swim away from vast ocean depths to spawn in rivers; dragonflies follow the passage of cold fronts in autumn to reach sun-soaked shores.
|
|
Physics Prize: Gábor Horváth, Miklós Blahó, György Kriska, Ramón Hegedüs, Balázs Gerics, Róbert Farkas, Susanne Åkesson, Péter Malik, and Hansruedi Wildermuth, for discovering why white-haired horses are the most horsefly-proof horses, and for discovering why dragonflies are fatally attracted to black tombstones.
|
|
The eyes of these dragonflies — the species Sympetrum vulgatum, also known as the vagrant darter — encase the top of the insect's head in an iridescent dome, with a thin line running down the middle the only visible reminder that they may have once been separate.
|
|
Moths, dung beetles, wasps, bees, and dragonflies have all been given well-deserved PR recently from new widely-reported research and an expertly-told front page story in The New York Times Magazine, foretelling environmental doom should we annihilate the foundation of the planet's food web.
|
|
In the animated Bojack universe, humans and animals blissfully co-exist on equal emotional and verbal planes while still flaunting all the wild quirks of their species: The dragonflies fly, the cats have claws, the clams live in the sea (and take "shellfies" on their phones).
|
|
In the coming years, scientists can use these insights to develop safer and more capable autonomous robots, whether they be self-driving vehicles (which, like dragonflies, are moving objects that need to predict the trajectory of other moving objects), or flying robots used for reconnaissance purposes or as artificial pollinators.
|
|
In "Family Album," Kleinzahler goes back to New Jersey, where "no one is left here who knows me anymore," and by the time he reaches the closing two lines, his home might just feel like your home, everyone's home, accessible only in memory: Warm grass and dragonflies —O my heart.
|
|
For a normal suburban house, they can't, so in the process of reading about that, I read a study that was commissioned by the Navy that looked at taking two helicopters and sticking them together, which, if you've ever seen dragonflies mating, it looks like that.... They decided not to go with that idea.
|
|
In Denmark, an ornithologist named Anders Tottrup was the one who came up with the idea of turning cars into insect trackers for the windshield-effect study after he noticed that rollers, little owls, Eurasian hobbies and bee-eaters — all birds that subsist on large insects such as beetles and dragonflies — had abruptly disappeared from the landscape.
|
|
Mr. Nicol, a shotokan karate expert and maker of nature specials, is most proud of his Afan Woodland Trust, a living collection and a legacy: a 150-acre forest that is his home and houses nearly 150 types of trees, rare species that includes 45 kinds of dragonflies, work horses and a stable made from reclaimed birch designed by the architect Nobuaki Furuya.
|
|
As the driver lifted the poles in front, the boy felt the world tilt: Suddenly in front of them, in the middle air, there is a whole colony of blue and water-green dragonflies, circling and hovering in their staccato way, sometimes still in the air with just a vibration of wings, a static thrumming, and then off again with a jerky move.
|
|
About a third of the society's 59 members are newbies, and children as young as 12 can join the society's adults in poring over unsorted trays of translucent wings and delicate thoraxes, or carefully rifle through the wooden cabinets that hold over a million pinned wasps, bees, ants, sawflies, beetles, flies, mosquitoes, butterflies, moths, dragonflies, crickets, true bugs, lacewings and caddis flies.
|
|
That suspension of a large swarm a cause of wonder and his mother with an explanation for a small child: They have just been born, up in the heavens, and have been sent down to earth right now , as if heaven were up above behind the canopy of the blue sky, the dragonflies shimmering their papery net-wings, a dazzling whirr in the clear light, having just pierced the blue screen above in their birth and descent.
|
|