Mosquitoes are biting insects that can bother people at summer barbecues, but they have also played an important role in human history. One historian says that mosquitoes have been critical in changing the course of history, primarily by spreading deadly diseases that have killed billions of people. He explains how new genetic tools might be used to eliminate the threat to humans posed by these dangerous insects, which offer no clear ecological benefits. Listen to hear the surprising ways that mosquitoes have influenced history and how mosquito populations could potentially be controlled.
Story Length: 5:31
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October 19, 2018
3:51
Malaria is a devastating disease transmitted by mosquitoes, affecting millions each year. A team of scientists has been experimenting with genetic engineering that would cause the mosquito population carrying malaria to destroy itself. Listen to hear how the genetic engineering process works and how different groups are responding to the controversial experiment, and then debate: Should mosquitoes be genetically modified to self-destruct?
Read MoreJanuary 12, 2017
7:58
Scientists are experimenting with genetically modifying mosquitoes to wipe out some diseases like malaria. Every year malaria kills a million people. This new technique uses genetic engineering to alter mosquitoes genes. It’s a practice called “gene drive” and it’s controversial because it can be use to eradicate disease but could also be used as a weapon. This audio story explores the science behind gene drives and the controversy surrounding the technique.
Read MoreAugust 16, 2016
3:20
Scientists have come up with a new technique to modify the genes of plants, insects and animals. This “gene drive” technique may be able to stop the spread of diseases that insects carry, such as Malaria and Zika, but also has some dangers. For example, releasing genetically modified species could lead to an unbalanced ecosystem, destroy other species, or spread other diseases. Listen to the story to hear more about why this technique is controversial.
Read MoreApril 1, 2016
7:07
Scientists all over the world are racing to stop the Zika virus epidemic. One solution being tested in Brazil is to release hundreds of thousands of male mosquitoes every day that have been engineered with a “self-destruct” gene. Female mosquitoes are the only ones who bite, so if they mate with these genetically engineered males, all offspring dies before they can spread Zika. This is projected to cut the number of disease-spreading mosquitoes by 70-80 percent. But not everyone agrees that this is the best solution. Engineering the mosquito population may allow other diseases to spread. Other solutions include sterilizing the mosquitoes or using bacteria. Listen and debate what your students think are the best ways to fight the Zika epidemic.
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