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Most insects have wings that appear to be transparent. Researchers from the University of Lund have found that they actually have rainbow colors, but the background of those wings makes all the difference in what the human eye sees.
“You hold the wing up against the light, so you can see the veins,” said study co-author Daniel Janzen, an evolutionary ecologist at the University of Pennsylvania. “If you’re looking through a microscope, you try to get a clear view behind the wing. It’s the antithesis of getting wing color.”
The researchers studied wings under microscopes, against black backgrounds. But once Janzen, who breeds wasps for his research on caterpillar-parasite symbioses, started to look, colors could be seen by the naked eye as wings passed over insects’ black bodies.
This study looked at the wings of wasps and flies, and the team believes they may find similar results in other orders of insects. Link
John VandenBrooks of Arizona State University in Tempe examined how changing levels of oxygen in the atmosphere may effect the size that insects grow:
The team raised cockroaches, dragonflies, grasshoppers, meal worms, beetles and other insects in atmospheres containing different amounts of oxygen to see if there were any effects.
One result was that dragonflies grew faster into bigger adults in hyperoxia.
Experimenting with giant insects — what could possibly go wrong?
Link via DVICE | Image: Warner Bros.
Japanese chef Shoichi Uchiyama has developed a line of sushi recipes that use insects, rather than fish, as the primary source of protein. He believes that carefully-selected insects are not only healthy and tasty, but can help feed a growing world population. From a 2008 article in The Daily Telegraph:
“In order to get 1 kg of beef, we have to raise cows on huge areas of land and give them many more kilos of fodder before they are ready to be slaughtered,” he said. “Insects eat the things that humans don’t and can be kept in much smaller spaces.
“Most importantly, insects are very nutritionally balanced, have little fat and are the perfect food source.”
Article Link and Photo Gallery via Marginal Revolution | Photo: Damn Cool Pics
There are more insects in the atmosphere than you’ll ever see. In fact, you don’t see them all because they fly really high. How high? NPR has an animated video with the surprising answers.
When British scientist Jason Chapman told us (listen to the radio piece or watch our video) there are 3 billion insects passing over your head in a summer month, he was talking about his survey in Great Britain. Closer to the equator, he says, the numbers should rise. He wouldn’t be surprised, for example, that in the sky over Houston or New Orleans there could be 6 billion critters passing overhead in a month.
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The following is an article from the book from Uncle John’s Bathroom Reader Wonderful World of Odd.
Do you have a nagging, gnawing feeling that …well, just a nagging, gnawing feeling? You should-odds are you’re being slowly devoured by one of these tiny, vicious parasites right this very second.
EATIN’ YOU: Fleas
BIO: Fleas are tiny insects that just can’t live without blood. They eat more than 15 times their body weight in blood in a single day. That includes the blood of dogs, cats, rats, rabbits, and any other mammal that’s handy, including you. They’re also “Super Bugs”: Fleas can pull 160,000 times their own weight (the equivalent of a human pulling 24 million pounds) and can jump over 150 times their own size (the equivalent of a human jumping about 1,000 feet).
DANGER! In the right-or wrong-conditions, fleas are disease machines. They can transmit tapeworm to pets or humans, and can carry a number of diseases, including the blood parasite babesia, and the dreaded bubonic plague.Thankfully, they’re not nearly as bad as they were in the days before the vacuum cleaner. (Most eggs hatch in your carpet.) Image credit: Flickr user Dr. Hemmert.
EATIN’ YOU: Bedbugs
BIO: Tiny, painful, smelly, and disgusting, bedbugs are nocturnal, spending the day in walls, furniture, or in your bed. At night they crawl out of the mattress and suck your blood. And they can wait up to a year in that mattress between feedings.
DANGER! Their bites are often painful, but, thankfully, bedbugs are not known to transmit any diseases. Image credit: Flickr user PeterEdin (Tag Man).
EATIN’ YOU: Ticks
BIO: Ticks are arachnids-not insects-and are related to spiders. There are no ticks that live solely on humans, but if there are no deer, cattle, birdsd, or reptiles handy, you’ll do. They have three life stages after hatching-larva, pupa, and adult-and each stage needs a “blood meal” before morphing into the next stage. Ticks use a hunting technique known as “questing”. That means that since they can’t hop or fly or run after prey, they wait around on grass or twigs for a host to come to them. How long will they wait? Years, possibly decades. And despite all that sitting they can leap into action the instant they sense a host coming by. One female tick can increase its body weight 200 times in a six-day feeding. Human equivalent: going from 170 pounds to 34,000 pounds in a week.
DANGER! Only mosquitoes transmit more diseases to humans than ticks do. Image credit: Flickr user Micah Taylor.
EATIN’ YOU: Chiggers
BIO: Chiggers are the blood-sucking, infant larva of mites, but before they can grow up, they must eat. They prefer rodents and lizards, but they’ll happily dine on you. These ravenous babies digest skin cells by spitting up powerful enzymes. Irritated skin cells react by building a hard mound around the tiny hole created by the enzymes, forming a “straw” (called a stylostome) through which the chigger continues to suck your mushed skin.
DANGER! Chigger bites are possibly the most irritating and itchy bites in the world-and the sores can itch for weeks-but they’re not known to carry any diseases. Old wives’ tale: Putting nail polish over the hole will suffocate the submerged parasite. Wrong! Chigger do not burrow underneath the skin. If you have sores, you probably already scratched the chiggers off. Image credit: Flickr user Cabezalana.
EATIN’ YOU: Face mites
BIO: What’s that on your eyelid? It might be one of those microscopic mites. They live in the pores and the hair follicles of the face, especially around the nose and eyelashes. They plant themselves head-down on a pore or follicle, and happily live there feeding on sebaceous secretions and dead skin debris.
DANGER! Usually you wouldn’t notice them, but bad infestations can cause the face to become polluted by the excrement and and corpses of these invisible bugs. That and their eating of hair roots and oil glands may cause hair loss, rashes, and rough skin. They are not known to transmit diseases.
EATIN’ YOU: Head lice
BIO: These bloodsuckers live their entire lives on the human scalp and hair. They puncture your skin with special piercing/sucking mouthparts and feed two to six times a day. They’re particularly prevalent among children, who can spread them easily by sharing hats and combs, and by playing games such as “I’m gonna rub my lice-infested head against your head …because its fun!” (But personal hygiene is irrelevant-they’ll live on anybody.)
DANGER! The bites may itch, but head lice aren’t dangerous. Image credit: Flickr user Eran Finkle.
EATIN’ YOU: Crab lice
BIO: Also permanent human residents, these larger lice live in the warmer, moister climes of pubic and armpit hair. They’re sluggish: If not disturbed, one can live its entire life within a half-inch of where it was born, but, like all lice, can be passed to other people through close contact. Not gross enough? Crab lice can also live in beards, moustaches, eyebrows, and eyelashes.
DANGER! Like head lice, you’re only in danger of embarrassment from crab lice.
EATIN’ YOU: Human liver fluke
BIO: This flatworm is contracted from eating infected fish, and primarily targets humans. They live in your bile ducts and liver tissue, as well as blood, and can grow up to an inch long and can live inside you for ten years.
DANGER! Symptoms can range from none …to death, for heavy infestations. (There have been cases where one person housed more than 20,000 of the parasites.) They are most prevalent in Asia, where raw and pickled fish are dietary staples. Image credit: Wikimedia user Flukeman.
EATIN’ YOU: Mosquitos
BIO: Contrary to popular myth, mosquitoes do not live on blood. They survive on nectar and other fluids sucked out of flowers. But females take a “blood meal”-they need protein to develop their eggs. You can’t hide: Mosquitos home in on their prey using specialized organs that can sense heat, carbon dioxide-which you just exhaled-and other gasses from up to 100 feet away.
DANGER! Mosquitoes traveling between hosts can transmit several diseases to humans, including malaria, sleeping sickness, and elephantiasis. Mosquitoes are the most deadly animal to humans on earth, causing more than 1,000,000 deaths a year. Image credit: Flickr user bogdog Dan.
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The article above is reprinted with permission from Uncle John’s Bathroom Reader Wonderful World of Odd.
This book focuses on the odd-side of life and features articles like the strangest TV shows never made, the creepiest insect on Earth, odd medical conditions, and many, many more.
Since 1988, the Bathroom Reader Institute had published a series of popular books containing irresistible bits of trivia and obscure yet fascinating facts. Check out their website here: Bathroom Reader Institute
This radar image was obtained by the National Weather Service Weather Forecast Office in La Crosse. The area depicted is where the states of Minnesota, Wisconsin, and Iowa meet.
A mayfly hatch along the Mississippi River was caught on Doppler radar out of NWS La Crosse this evening. The radar view below shows an image at 9:13 p.m. CDT on Saturday, May 29, 2010. The bugs are showing up as bright pink, purple, and white colors along the Mississippi River mainly south of La Crosse, WI. After the bugs hatch off the water and river areas, they are caught in the south-southeast winds while airborne for about 10-20 minutes.
A rare species of bee uses flower petals to make a tiny nest for each egg. Two teams of researchers found nests of the Osmia (Ozbekosima) avoseta bee in Iran and watched them meticulously build the nests and line them food for the developing baby bees.
To begin construction, she bites the petals off of flowers and flies each petal — one by one — back to the nest, a peanut-sized burrow in the ground.
She then shapes the multi-colored petals into a cocoon-like structure, laying one petal on top of the other and occasionally using some nectar as glue. When the outer petal casing is complete, she reinforces the inside with a paper-thin layer of mud, and then another layer of petals, so both the outside and inside are wallpapered — a potpourri of purple, pink and yellow.
See more pictures at NPR. Link -via Nag on the Lake
(image credit: Jerome Rozen/American Museum of Natural History)
Every culture has some traditional dishes that make those from elsewhere cringe. The author of this post heard from quite a few people in India that pizza is clearly disgusting! Here are some other offbeat delicacies from around the world. I think I would have to try some of these before I make a judgement. For example, in Iceland, you may encounter Hákarl, or rotten shark.
Typically, a Greenland or basking shark is the Hákarl shark of choice. First, gut and behead it. Next, place it in a shallow hole, dug in gravelly-sand, then cover it with the sand and gravel. Place stones on top of the sand in order to press the shark and extract any fluids out of the body. Allow the shark to ferment for 6-12 weeks. Following the curing period, cut the shark into strips and hang them to dry for several months. During this drying period a brown crust will develop. Remove the crust prior to cutting the shark into small pieces and presto, ready to serve.
From the Upcoming 
ueue, submitted by mrmunchies.
There’s a lot going on in a small garden pond! Mirko Faienza blends beautiful macrophotography and music in My Father’s Garden. -via Metafilter
Over 700 paired species of fig trees and wasps have symbiotic relationships. The fig tree host wasp eggs, and the wasps pollinate the fig trees in return. But according to a new study, if the wasps don’t pollinate the host plants, the fig trees retaliate:
If the wasps don’t do their duty, the trees respond by enacting a sanction — aborting their fruit, killing off the teeming mass of baby wasps. A new study of this killer tree phenomenon, published in Proceedings of the Royal Society B comes from Cornell University and The Smithsonian Tropical Research Institute, shows that negative reinforcement may be an important part of symbiotic relationships.
Pollination by wasp comes in two varieties: passive and active. With passive pollination the wasps carry pollen that happens to stick to their bodies; where with active pollination they collect pollen in special pouches to deliver to the flowers.
With the passive pairings, the fig trees abort their fruit far less often than with active pairs. In the actively pollinating groups, the tree species that tend to enforce sanctions less often have a higher occurrence of freeloader wasps, who take advantage of the figs without doing any of the work. Inversely, by using the sanction option more frequently, some fig species have a lower incidence of non-pollinating insects.
Link | Scientific Paper | Photo: University of British Columbia
You may well be thinking ‘The mystery of what?’ but resin (the type from trees) is still something of a mystery. The jury is still out about why exactly plants secrete (or excrete, depending on what side of the argument you are on) the sticky oozy stuff on which you may well have at some point inadvertantly put your hand or your clothes while taking a stroll through the woods. Plus at the right time it looks simply amazing, especially with insects inside it.
Some plants produce explosive resin. The Jeffrey Pine of California produces resin which is highly volatile – that mean it has, under the right circumstances – a tendency to vaporize. When people tried to distil it in nineteenth century America, they thought it was Ponderosa Pine resin. A number of distilleries exploded as a result of this mis-classification and the mistake was put right in something of a hurry. The reason behind the explosion was that the Jeffrey Pine resin was made up largely of pure heptanes – highly flammable. Distillation of Jeffrey Pine resin continues to be very dangerous to this day but the denizens of California have managed to get it right since the great pine explosions of 1852.
From the Upcoming ueue, submitted by taliesyn30.
Ants are such amazing creatures! Able to work together to create vast underground empires and take down almost any animal of any size…even humans! So, what happens when a creature such as the crab ends up getting the ants attention? In a Goliath vs. David (x100 or so) situation a crab thinks its protective armor is a deterrent preventing the ants from killing it, guess again. I can’t imagine what it must feel like having something start eating you from the inside out. O_O
From the BBC show “Ant Attack”.
Since 1967, scientific illustrator Cornelia Hesse-Honegger has visited 25 nuclear sites, including that of the 1986 Chernobyl disaster, documenting the mutated insects resulting from radioactive contamination. In an interview about her work, Hesse-Honegger said:
I never thought really about myself as being an artist. I just made what I thought was necessary. I thought that these laboratory flies are the prototypes of our understanding of nature, in the sense that we can do anything to nature—we the humans dictate in the end how nature should look like. It was for me the prototype of a future nature, man-made.
The professor who first gave me the mutated flies was convinced, however, that the radiation from Chernobyl had no impact on nature. This is what brought up the question of “low-level radiation.” Nobody was interested in doing research; this is why I thought I had to make these paintings to show the scientists that it would be important to start research in fallout areas.
Link via Fast Company | Interview with the Artist
It is fitting location for artist Jennifer Angus to show her work. Nestled within the Ballentine House, Angus has taken two rooms, the former rooms of the two Ballentine children, and covered them in insects. From a distance it looks like wallpaper, but upon closer inspection, the walls have been covered in thousands of precisely pinned bugs. Giant pink grasshoppers, perfect replicas of leaves and iridescent jewel beetles all swarm the walls in orderly geometric patterns.
Curious Expeditions visited the exhibit, and interviewed the taxidermy-inspired artist. Link
They do not look as if they belong in this solar system, let alone on planet Earth. This collection of photos reveal the strange beauty of insect eggs (though that may well be a matter of taste). Close up they are quite out of this world:
Where is John Hurt when you need him? If he could perhaps just lean over these eggs he might get a nasty surprise but we would perhaps have a chance of identifying these eggs. Although the species is unknown this is a good starting point on our journey through insect eggs. At once a little scary but fascinating, it is difficult to believe that these will hatch in to something probably harmless to us. Fortunately, the eggs measure millimeters rather than meters so don’t have nightmares!
From the Upcoming ueue, submitted by taliesyn30.
Caterpillar pancakes made by Heidi Kenney, who was inspired by these pancakes. Don’t miss Heidi’s adorable plush creations.
Previously: Pancake art.
Some amazing photography enables us to get up close as various insects meet their demise. Includes various acts of dismemberment (including one in mid air) which are not for the faint hearted!
Death in the domain of the insects can be swift and cruel but retains a magnificence and beauty that is somehow at odds with the brutality of what is happening. Take a look at this collection of awesome photographs and see whether or not you agree – but beware! This is not for the squeamish!
Link – via webphemera
From the Upcoming ueue, submitted by taliesyn30.
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