mosquito Archives - DOES GOD EXIST? TODAY

September 11, 2024September 10, 2024

The Green Darner Dragonfly Is a Mosquito Hawk

The green darner dragonfly (Anax junius) is common across North America and is the state insect of Washington. It is one of 5,000 dragonfly species but has some unique properties that make it a “mosquito hawk.”

The green darner dragonfly gets its name from its long, thin, needle-like body that resembles a darning needle. These dragonflies begin life as eggs in quiet, fresh water. The female attaches the eggs to plants underwater. She will drop them into shallow water if there are no plants available. Eventually, the eggs hatch into a nymph stage.

The green darner dragonfly can stay in the nymph stage for a few days or as long as four years until it attaches itself to a plant above water. Then, an adult dragonfly will emerge in a few days and leave behind the nymph skin, called the exuvia.

The adult dragonfly’s primary food is mosquitos, devouring vast numbers of them. The design of the green darner dragonfly’s two huge compound eyes consists of thousands of telescopic lenses, giving it a 360-degree field of view. It also has three simple eyes, which all work together. The individually powered wings are two inches long, allowing the insect to hover or travel in a straight line at roughly 10 miles per hour.

If weather becomes an issue, green darner dragonflies will migrate south, as monarch butterflies do, producing offspring in Mexico, the Caribbean, or the southern United States. Like monarch butterflies, the offspring of the green darner dragonflies will fly back to the north, but unlike monarchs, they eat vast numbers of mosquitoes as they travel.

These multi-generational insect migrations show system design. One generation does not live long enough to complete the migration, and the insects can’t teach their eggs and larvae what to do and where to go. The migrations benefit the balance of nature in the various ecosystems more than the insects themselves. Mere chance is not an adequate explanation. We suggest that the green darner dragonfly is another evidence of a Creator.

— John N. Clayton © 2024
Reference: Linda Weiford in The Spokesman-Review, Spokane, Washington.

March 2, 2022March 1, 2022

Dangerous Animals that We Fear

We see articles in magazines and newspapers telling terrible stories about dangerous animals killing humans. On planet Earth every year, 200 people are killed by lions, 500 by hippos, 600 by elephants, and 1000 by crocodiles. However, the deadliest creatures on the planet are not lions, hippos, elephants, crocodiles, or even sharks. Those numbers do not apply to most people reading this because those deaths occur in the limited areas of the world where those animals dominate.

Dangerous animals closer to home are scorpions, killing 3,300 people in the Americas. Dogs, including those that are rabies-infected, kill 59,000 humans. Snakes annually kill 138,000 people. So you might guess the top two killers of human beings. The second leading killer of humans is other humans, who take the lives of 400,000 people killed in homicides – not including suicides or war. However, the top killer of humans is mosquitos, with 725,000 people dying from diseases contracted through mosquito bites.

The list of diseases that mosquitos give to humans is massive. Chikungunya, dengue, yellow fever, encephalitis, West Nile fever, and malaria are a partial list. On the other hand, a minimum of care and prevention can avoid those diseases. For example, the mosquito that gives malaria to a human must be a female and one of the members of the Anopheles species. Also, they must have previously sucked blood from a malaria-infected human or animal.

It is easy to overlook the fact that many mosquitos are helpful pollinating insects. Furthermore, humans often create invironments where mosquitos flourish. Fields flooded to grow rice are great places for mosquito breeding. Humans have altered the natural environments, removing life forms that eat mosquitos, including in the larval stage when they live in bodies of still water.

Humans have caused many problems by invading animal habitats and altering the natural system God designed to keep dangerous animals and insects in balance. In many ways, we create our own problems. God did not create animals to hurt humans. Genesis 1:21 tells us that when God created “the moving creature that has life … and every living creature that moves … God saw that it was good.” That was God’s original design, and many of the bad things we experience are due to human ignorance, carelessness, and greed.

Reference: Data from Skeptical Inquirer March/April 2022, pages 25-26.

May 3, 2021April 21, 2021

Solutions to the Mosquito Problems

One of the big problems that humans face is mosquito infestations. Most of us know that mosquitoes can carry serious diseases, with malaria being at the top of the list. It is essential to understand that the presence of mosquitos is not a failure in God’s design of the natural world. What are the solutions to the mosquito problems?

Most mosquito species are pollinating insects. Of the problem species, only the females draw blood, usually from decaying remains of animals. Before humans invaded natural habitats, mosquitos were less of an issue than in modern times. The larvae do not survive well in running water, and mosquitos are such weak fliers that even a slight breeze will keep them at bay.

The human response to mosquitos has been badly misdirected. The most common response has been to spray areas with heavy doses of chemicals that kill mosquitos. The problem is that the spraying kills everything else as well. Pesticides do not discriminate between good insects and bad ones. Animals dependent on insects for food are radically affected by massive spraying. Since 1970, nearly three billion birds have disappeared from North America. The solution to mosquito problems is quite simple–let God’s natural agents control the mosquito population.

Dragonflies and damselflies are voracious mosquito eaters concentrating on mosquito larvae. Hummingbirds eat hundreds of insects every day. American bullfrogs have long sticky tongues designed to catch insects, and mosquitos are at the top of their list. Red-eared slider turtles are mosquito eaters, with one study showing a 99% drop in mosquito numbers in ditches where the turtles were introduced. Woodpeckers, warblers, and wrens all eat mosquitos. They are all solutions to the mosquito problems.

Mass spraying creates imbalances in insect populations and kills birds and animals that feed on mosquito larvae. The spray also has serious implications for humans who react to the chemicals, including some forms of cancer. Humans have contributed to the dilemma that mosquitos bring to all of us, but God has natural solutions to the mosquito problems.

Data from National Wildlife April/May issue 2021.

November 4, 2019November 2, 2019

Why Do We Have Mosquitoes?

Every summer and early fall, the newspapers start talking about how horrible mosquitoes are. Then I have to deal with questions of why mosquitoes exist. If there is a kind and loving God, why do we have to worry about the diseases that mosquitoes carry? I have heard some people give rather foolish answers to this question, and I don’t wish to over-simplify in discussing it. But why do we have mosquitoes?

Many years ago, one of my professors at Notre Dame was Dr. George B. Craig, whose specialty was mosquitoes. He was “an internationally recognized expert on the biology and control of mosquitoes” according to a publication of the National Academies of Sciences. As one of his students, I learned some fantastic things about mosquitoes. Mosquitoes are pollinating insects. Most species of mosquitoes pollinate plants and don’t “bite” anything.

The word “mosquito” is Spanish for “little fly” and there are some 3500 species of them. The larvae of the mosquito are a significant part of the diet of fish and other water creatures. The mutation which turned some of them into bloodsuckers seems to have come into existence in recent history. It appears they were not created that way, and certainly have not always carried malaria and other diseases. The fact that there were no mosquitoes in Hawaii until the white man came to the islands with water barrels containing mosquito larvae is another important point to consider. The question of “why do we have mosquitoes” won’t always get answered to everyone’s satisfaction, but at least we can raise some points to make people think.

The design of the various food chains on Earth is very complex. This is especially true in freshwater areas with unique problems. In Alaska, for example, the necessary minerals for plants and the food sources for bears come from the salmon runs that bring the nutrients. The soil is sparse and nutrient-poor, and much of the year, the cold prevents normal food chains from functioning. Insects provide a significant means of moving nutrients through the system, so they are the base of the food chain in those freshwater systems. Without mosquito larvae to feed the freshwater creatures, including the salmon, that life would not exist.

Research has not given us enough data to understand how mutations in insects allow them to become disease carriers. There are multiple possible answers to that question, and future discoveries will make it more clear. Those of us who live in the north may not like the mosquitoes that make our outside activities uncomfortable, but we know how to cope with them. Why do we have mosquitoes? As we tie our dry flies to fish for trout and salmon, we see why the beauty of the north is at least partially rooted in things that complicate our lives. Mosquitoes are among those complications.
— John N. Clayton © 2019