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Vanderbilt University researchers say they're working to unleash an insect repellent on mosquitoes that’s more powerful than DEET. The discovery could one day be effective in reducing the spread of mosquito-borne diseases, such as malaria. It's based on a mosquito's sense of smell. With support from the National Science Foundation, Vanderbilt University biologist Laurence Zwiebel researched which mosquito genes are linked to odor reception. He discovered a separate odor sensor on a mosquito's antennae. According to Zwiebel, mosquitoes use odor sensors to sniff out humans and other tasty animals to bite. The new insect repellent compound takes advantage of his discovery by overwhelming the mosquito’s odor sensors to the point that they can't smell anything else and get scared away.
(Source: DCMP)
Mosquitoes spread several viruses, including Dengue, Chikungunya, Yellow Fever, and Zika. Health officials are developing various methods to help reduce the spread of infections. One of those methods is to produce genetically modified mosquitoes that, when released into the wild, reproduce with wild mosquitoes and cause their offspring to die.
In each episode, viewers are given clues about a hidden animal inside a magic box. Can viewers use all the clues to correctly identify this bloodsucking insect. Part of the "Zoobabu" series.
Shows the metamorphosis of the mosquito from a water ecosystem organism to a land ecosystem organism. One of nine segments in a series, with all nine available on a DVD.
Mosquitoes are annoying pests. They can interrupt a backyard picnic, and their bites cause red, itchy bumps. These pests can also carry viruses that make humans sick. In this episode, learn how and why the invasive Asian tiger mosquito is even more problematic than other varieties. Part of the "Seasonal Science" series.
Dengue virus, which causes the infectious disease dengue fever, is estimated to infect more than 400 million people every year. It is usually transmitted through mosquitoes. Scientists working to eradicate the disease have discovered that dengue virus is not able to replicate in mosquitoes infected with a bacteria called Wolbachia. The researchers developed a plan to release infected mosquitoes into the wild so that Wolbachia can spread throughout the mosquito population. Part of the "I Contain Multitudes" series.
Viruses are tiny agents that can infect a variety of living organisms, including bacteria, plants, and animals. The Dengue virus is a mosquito-borne viral disease occurring in tropical and subtropical areas. Scientists at the University of California, Berkley have identified a key culprit responsible for the severe symptoms related to Dengue fever.
In each episode, viewers are given clues about a hidden animal inside a magic box. This episode is all about insects. Animals highlighted include: a bee, a ladybug, a caterpillar, a cicada, an ant, a dragon fly, a fly, a mosquito, a butterfly, and a grasshopper. Part of the "Zoobabu" series.
In Hawaii, biological detectives study the honeycreeper, a bird once on the edge of extinction, now making a surprising comeback despite habitat destruction and non-native mosquito borne-disease. Is rapid evolution the answer? Segment of video from Wild Chronicles Series.
This episode explores the necessary and yet often times annoying relationship between humans and insects. Some of the insects highlighted include honey bees, driver ants, silk worms, locusts, Anopheles mosquitos, aphids, money spiders, and army ants. Part of the "Nature's Micorworlds: Insect Specials" series.
Stacey Combes, a biomechanist at Harvard University, and her team are using high speed cameras to help them study how dragonflies pull off complicated aerial feats that include hunting and mating in mid-air. They can fly straight up, straight down, hover like helicopters and disappear in a blur. Combes is also exploring the use of dragonflies for mosquito control.
One of the areas that is most sensitive to climatic change is human health. Climate change affects human health in numerous ways. Some are immediate, and others may not manifest until future generations inhabit earth. Global areas have already begun to suffer the effects of ecosystem alterations and limited water sources. These situations also impact crop production and food distribution. Researchers also predict an increase in the number of displaced persons as the planet warms and sea levels begin to rise. Chapter 10 of Air: Climate Change Series.
In this episode, groups of citizen scientists use apps and maps to help researchers gather data about medical conditions. Sensors on asthma inhalers generate real-time maps of environmental dangers to help patients and physicians in Louisville, Kentucky. In West Oakland, California, citizens confront air pollution and rising asthma rates by collecting traffic data. Citizen scientists are fighting mosquito-borne diseases with apps and crowd-sourced data in Barcelona, Houston, and New Orleans. Part of "The Crowd and the Cloud" series.
Biological vectors carry and transmit diseases that affect plants, animals, and humans. This program focuses on diseases transmitted by mosquitoes and ticks. Students will learn how scientists use the information they gather to help control and prevent the transmission of vector-borne diseases around the world. Part of the "Real World Science" series.
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