How many flies live?

How many flies live?

Houseflies are the most commoninsects, and, interestingly, they almost never occur in the wild. Everyone knows how they look, but here is the answer to the question of how many flies live, not everyone is ready.

Flies are found almost everywhere on Earth. They appeared on our planet for a very long time. In China, a fly was found, which lived, as scientists determined, about 145 million years ago.

Before answering the question about how muchlive flies, consider them more closely. How do they look externally? In length, the body of an adult fly is about five to ten millimeters, the color is most often gray, the abdomen has a slightly yellowish color, and on the upper side of the chest several black bands along the body are visible. Upon closer examination, one can see that the fly body is covered with sparse, but rather long, hairs. The eyes of the fly are large, faceted, their color is brown. The distance between the eyes of female flies is slightly larger than that of male flies. The small details of the fly’s eye are discernible, however, they can discern the slightest flashing of light. Female flies are somewhat larger than male flies, but it is not easy to determine this with the naked eye.

Feeding flies mainly liquid food, although they also use hard, but they first dissolve it with the help of saliva.

Flies are very prolific and multiply rapidly. The female can lay about 100 eggs at a time, their size is approximately one millimeter in length. And how many flies live? Not for long, but in their short life, these dipterous lays a huge number of eggs, depending on the conditions of reproduction. They usually live near the place of breeding. Due to the influence of wind, they can spread over a fairly long distance. The main food for indoor flies are food waste.

I must say that the housefly is verydangerous insects, since it can carry on itself a variety of infections, diseases, eggs of parasites. It is necessary to apply preventive measures: it is impossible, for example, to store waste, sewage and food waste outdoors. Often for the destruction of flies use special chemical preparations — insecticides. But in living quarters such substances can not be used. Therefore people use sticky tapes and other baits, and also place protective screens on the windows, through which no fly can fly into the living space.

So, how many flies live? It depends on the species, usually their life span ranges from a few days to two and a half months. On average, their life expectancy is approximately three weeks. The life span of a fly depends on the air temperature. The most optimal temperature for these insects is a room temperature (21-24 degrees Celsius). Under such conditions, the fly can live up to more than two months. However, the vast majority of these insects do not live to the age of ten days, as they often become food for predators.

Short term of life they compensate hugeability to reproduce. One female during her short life can postpone up to two thousand larvae, each of which develops twenty-five days, after which it becomes a pupa. Three days later, a fly emerges from it, which, thirty-six hours after its birth, is already capable of multiplying. It turns out that over a period of about twenty generations of flies can change.

The life expectancy of a fly becomes larger,if it hibernates in winter. In this case, the fly in the state of suspended animation can overwinter, and when the heat becomes warm, it can again come to life. And in hibernation can not fall not only adults, but also larvae.

erch2014.com

Fun Facts About Flies

Many people consider flies nuisances, but these insects are quite complex and are found all over the world. They belong to the order Diptera, which they share with other insects, including mosquitoes.

Here are seven other facts about flies that you might not have known.

Some species of flies are genetically similar to people.

According to researchers at the National Aeronautics and Space Administration (NASA), the genes of fruit flies match about 77 percent of the discovered human disease genes. With a short life cycle – in most fruit fly species it takes only a week to go from egg to adult – it is possible for scientists to study genetic mutations in a much shorter amount of time than with other insects or animals. Because of this, fruit flies are often used in medical research labs.

Flies can see behind them.

It’s a fly fact that there are thousands of tiny lenses, called ommatidia, which make up the eyes of a fly. These compound eyes allow flies to see 360 degrees at once.

There are fruit flies in space.

NASA sent fruit flies to the International Space Station in 2014. The flies, located in the “Fruit Fly Lab,” are being used to study the long-term effects of microgravity, space flight and space radiation. The results will help inform decisions made about space travel for humans. For more information, visit nasa.gov.

Flies are good at math.

Despite having tiny brains, flies are excellent at calculating the angle of a swatting hand, newspaper or swatter and creating a flight plan to avoid it. When they see a threat coming, they are able to leap backward using their hind legs to avoid the hit, according to research done by scientists at the California Institute of Technology (CalTech). Their data on this fly fact showed that flies make these decisions within 100 milliseconds of spotting the threat.

There is a right way to swat a fly.

According to the CalTech team, there is actually a better way to swat a fly. Instead of aiming directly for the fly, you should try to aim ahead of it and anticipate where it is going to jump when it sees you coming.

Some flies are imposters.

It’s a fly fact that there are species of this pest that mimic other insects. Hover flies, for example, often look like bees or wasps, enabling them to avoid predators. These flies get their name from their behavior – they are often seen hovering in midair like small, living helicopters. While their buzzing can be annoying, hover flies are considered beneficial as their larvae prey on aphids, caterpillars, thrips and scales. Adult hover flies are pollinators of flowering plants.

Not all flies are “true flies.”

Some insects are called flies, but are not actually included in Diptera. To tell them apart, look at the insect’s name: a “true fly” will have its name in two parts, like the house fly, whereas a dragonfly is all one word.

While these facts about flies are interesting, they don’t mean you want to keep these pests around. If you have a fly problem in your home, call a pest management professional to tell these insects to buzz off.

www.terminix.com

15 Fascinating Facts About Fruit Flies

The common fruit fly, Drosophila melanogaster, may seem like nothing more than a nuisance when your fruit gets too ripe, but medical research owes a great deal to this tiny little menace. Here are 15 fascinating facts about our fruit-loving buddies:

1. THEY LIVE AND DIE QUICKLY.

The fruit fly has a very rapid life cycle. Just one fertile mating pair can produce hundreds of genetically identical offspring within 10 to 12 days, so long as the temperature is at 25°C or higher.

2. YOU CAN THANK THE FRUIT FLY FOR MANY MAJOR MEDICAL BREAKTHROUGHS.

Because of these comparatively short life spans, fruit flies make for ideal lab subjects: Researchers can easily study genetic evolution over generations. By comparison, what scientists have learned about fruit flies in 30 years of study would have taken 200 years in mice. So for more than a century, fruit flies have been the stars of genetic research.

3. FRUIT FLIES HELPED SCIENTISTS DISCOVER GENETIC BASICS.

Thomas Hunt Morgan was one of the first to systematically study fruit flies at the turn of the century. Morgan was the first to confirm the chromosomal theory of inheritance—in essence, that genes are located on chromosomes “like beads on a string,” and that some genes are even linked, or inherited together. This work won Morgan the Nobel Prize in Physiology or Medicine in 1933.

4. THOUGH THEY’RE SMALL, FRUIT FLIES HAVE MANY GENES …

To put in context just how many genes fruit flies have, humans have 24,000 genes. Fruit flies, which are only a couple of millimeters long, have 14,000.

5. … WHICH COULD STILL TEACH US A LOT.

Scientists successfully sequenced the entire fruit fly genome in 2000. According to the Human Genome Project, “During the last century, fruit flies have yielded a wealth of information about how genes work. They have been used to discover the rules of inheritance and to study how a single cell, the fertilized egg, becomes a whole animal.”

6. HUMANS AND FRUIT FLIES ARE GENETICALLY SIMILAR.

A whopping 75 percent of the genes that cause diseases in humans are also found in the fruit fly. But don’t worry, you’re unlikely to reprise the horror flick The Fly anytime soon.

7. THAT’S WHY FRUIT FLIES CAN MODEL HUMAN DISEASE.

Because they have many of the same genes as humans, researchers can use fruit flies to simulate diseases that plague humans. For example, flies eating a lot of sugar also exhibit symptoms of type 2 diabetes. Researchers can also genetically modify fruit flies to study a variety of other conditions.

8. HOW DO THEY KEEP THEM FROM FLYING AWAY?

Researchers make fruit flies woozy with carbon dioxide before they let them out of their test tubes for study; otherwise, they’d wing off.

9. FRUIT FLY CHROMOSOMES RESEMBLE BARCODES.

Drosophila have polytene chromosomes, or barcode-like banding patterns of light and dark. This makes it easy for scientists to assess genetic rearrangements and deletions.

10. THE FEMALES STAY BUSY.

A female fruit fly lays 30 to 50 eggs per day throughout her lifetime at room temperature. When it’s cold, she may produce far fewer eggs.

11. SMALL INSECT, BIG BRAIN.

The brain of the adult fruit fly has more than 100,000 neurons that form discreet circuits and “mediate complex behaviors, including circadian rhythms, sleep, learning and memory, courtship, feeding, aggression, grooming, and flight navigation,” according to one study.

12. THEY DON’T JUST HELP MEDICINE: FRUIT FLIES ALSO MAKE YOUR BEER TASTE BETTER.

Fruit flies are masters of discernment when it comes to the yeasty flavors of beer. An experiment at Stanford found that fruit flies were attracted to beers with fruitier base yeasts, which tend to be the beers humans prefer as well.

13. FLIES SELF-MEDICATE WITH ALCOHOL TOO.

Sexually rejected male fruit flies also drown their sorrows. As reported in a study in the journal Science, the reward circuitry of fruit flies’ brains, as in humans, gets a pleasurable boost from drinking alcohol. What’s more, they may turn to it for reasons similar to humans: to make them feel better. A study done at the University of California, San Francisco found that the male fruit flies who had been rejected by females drank four times as much alcohol as the mated flies.

14. FRUIT FLIES GET THE BEST DRUGS.

Drosophila’s versatility is often used as a model to test the effects of new drugs on the biochemical pathways that are conserved within both fruit flies and humans.

15. RESEARCHERS HAVE DISCOVERED A NEW HEALING MECHANISM, THANKS TO FRUIT FLIES.

Using fruit flies as test subjects, researcher Vicki Losick recently discovered that in wounds, cells enlarge by polyploidization—or the multiplication of chromosomes—to compensate for cells that are lost. This suggests that cellular damage caused by wounds either leads to cell proliferation or cell growth, depending on context, changing our understanding of how the body reacts to injury.

www.mentalfloss.com

Interesting facts about frogs

Frogs belong to a group of animals called amphibians.

They are known for their jumping abilities, croaking sounds, bulging eyes and slimy skin.

There are approximately 4,800 species of frogs around the entire world.

Frogs live on every continent except Antarctica.

Frogs typically live in forested and wetland areas. They live in water, within ground cover, in trees and sometimes in grasslands as well as deserts.

The lifespan of a frog is 1 to 30 years. The exact length of time depends on the species of frog.

Frogs come in many sizes and colors.

The goliath frog (Conraua goliath) is the largest living frog on Earth. Specimens can grow up to 32 centimeters (12.6 inches) in length from snout to vent, and weigh up to 3.25 kilogram (7.17 pounds).

The smallest frog is the gold frog (Psyllophryne didactyla), which is a tiny 1 centimeters (0.39 inches) long and only about 1 gram (0.035 ounce).

Adult frogs have two main color schemes. Each one signals a different survival technique. Those with bright colors (like poison frogs) advertise their presence and warn potential predators that their skin is toxic. Those with mottled green or brown colors are camouflaged so predators have a hard time finding them.

Most species of frogs are nocturnal, but many others are diurnal.

Frogs are solitary animals, though they aren’t particularly territorial, except during the breeding season.

Frogs have a moist and permeable skin layer covered with mucous glands; this allows them to breathe through their skin in addition to their lungs. The moisture on the skin dissolves oxygen from the air and water surrounding the frog and transmits it into the blood.

During the time they stay submerged under water or buried in soil (such as during hibernation) they ONLY breathe through their skin.

Frog skin is water permiable, this means it can let water in and out. Frogs don’t often drink with their mouths, they absorb water through their skin. They have a ‘seat pouch’, an area on their bellies which is designed for water absorbtion. They absorb through capillary action from water or a moist surface.

Frogs are carnivores that eat live prey and do not feed on plants or carrion. Small to medium sized frogs eat insects such as flies, mosquitoes, moths and dragonflies. Larger frogs will eat larger insects like grasshoppers and worms. Some large frogs will even eat small snakes, mice, baby turtles, small fish, and even other smaller frogs!

Frogs use their sticky, muscular tongue to catch and swallow food. Unlike humans, their tongue is not attached to the back of its mouth. Instead it is attached to the front, enabling the frog to stick its tongue out much further.

Most frogs don’t hunt, but wait for their prey to come close enough for them to attack; They can’t chew their food and must swallow it whole.

Because they are cold-blooded, they don’t need to feed very often to support their metabolism.

During extreme conditions, some frogs enter a state of torpor (state of decreased physiological activity) and remain inactive for months. In colder regions, many species of frog hibernate in winter.

Some kinds of frogs can jump distances up to 20 times their own body length in a single leap. When disturbed, frogs often jump into a puddle or pond where they can hide underwater. Their erratic zig-zag jumping on land also serves to confuse potential predators.

Frogs can see forwards, sideways and upwards all at the same time. They never close their eyes, even when they sleep. Frogs do, however, have eyelids that blink to protect their eyes from dirty residue and preserve moisture.

Remarkably, frogs actually use their eyes to help them swallow food. When swallowing a big mouthful of food, a frog blinks its eyes. The blinking pushes the frogs huge eyeballs down on top of its mouth. This helps squeeze the food in its mouth into its throat.

Frog ears are called tympanums and look more like a flat, disc-shaped patch of skin directly adjacent to each eye.

In most frog species only the males croak. They croak to attract female frogs for breeding, and to warn away other male frogs from their territory. Many kinds of frogs puff themselves up enormously with air when they croak.

Frogs become mature between two months to 3 years old. After a female frog becomes mature, she can lay from two to more than 50,000 eggs at once, depending of species. Eggs will incubate for 48 hours to 23 days, submerged in water. During incubation, the male frog typically protects the eggs.

Once an egg hatches, a small, legless, fish-like creature emerges. This frog offspring is called a tadpole. Tadpoles gradually grow legs, absorb their tails, lose their gills, and turn into frogs and toads that start breathing air and hopping. This whole transformation is called metamorphosis.

Frogs have many predators. Animal predators include snakes, lizards, birds, shrews, raccoons, foxes, otters and weasels. Even under water frogs aren’t safe from hungry fish, turtles and water birds.

African frogs are the best jumpers of the frog world. They can hop 4.2 meters (14 feet) in a single bound.

Waxy tree frogs don’t hop but walk like a chameleon, using opposable first fingers and toes to grip branches.

Frog legs are eaten by humans in many parts of the world. French cuisses de grenouille or frog legs dish is a traditional dish particularly served in the region of the Dombes (département of Ain).

In Egypt the frog is the symbol of life and fertility, and in Egyptian mythology Heget is a frog-goddess who represents fertility.

The Greeks and Romans associated frogs with fertility and harmony, and with licentiousness in association with Aphrodite.

In medieval Europe the frog was a symbol of the devil, as the Catholic church associated it with witchcraft as a familiar spirit.

Frogs feature prominently in folklore, fairy tales, and popular culture. They tend to be portrayed as benign, ugly, and clumsy, but with hidden talents. Examples include Michigan J. Frog, “The Frog Prince”, and Kermit the Frog.

justfunfacts.com

Different Types of Flies

Most flying insects have four wings, but flies have two. They can fly up and down, side to side and even backwards.

—> Most flying insects have four wings, but flies have two. They can fly up and down, side to side and even backwards. Flies have hairy, sticky feet and can stick to almost any surface. They can even walk across your ceiling.

Only a few flies, such as female horseflies drink blood but that’s not all about flies.

Fun Facts About Flies for Kids

  • Over 100,000 species of flies live on earth.
  • Flies lay their eggs on fruit, food, other animals and even rotting flesh. Their larvae are known as maggots. They look like bits of rice.
  • Flies don’t have teeth. Instead, they have a long tongue called a proboscis, which sucks up food like a straw. Some flies drink nectar or blood. House flies like the food we eat. When a fly lands on your lunch, it vomits on the food. Acids in the vomit dissolve the food so the fly can suck it up. Disgusting!
  • Flies like to eat manure, which is animal poop, or old garbage. Some of the germs from these materials can stay on their feet or mouth parts. When a fly lands on your food, those germs get on your food. Super disgusting!
  • Flies carry disease. During the Spanish-American War, 5,000 soldiers died from typhoid, a disease spread by flies. Only 4,000 soldiers actually died in the war.

Flies like to eat manure, which is animal poop, or old garbage. Some of the germs from these materials can stay on their feet or mouth parts.

Fly Vocabulary

  1. Pest: unwanted, annoying
  2. Maggots : fly larva
  3. Proboscis : insect tongue
  4. Nectar : sweet liquid from flowers
  5. Vomit : throw up
  6. Manure : animal poop

Learn More All About Flies

—> Check out this cool video about a Venus fly trap capturing its prey – the fly:

—> A video of a Venus fly trap capturing a fly.

Fly Q&A

Question : Do all flies drink blood?

—> Answer : Only a few, such as horseflies and mosquitoes, drink blood. Only the females drink blood. They need the extra nutrients to lay eggs. Males drink nectar.

—> Question : How many germs can flies carry? —>

Answer : Scientists have estimated that flies can carry almost 2 million types of bacteria. Gross!

easyscienceforkids.com

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