About 600,000 mosquitoes are being released across the Washington DC area this summer to help reduce local mosquito populations.
Only male mosquitoes – infected with the naturally occurring bacteria Wolbachia – are released. They don’t bite humans, and the bacteria they carry prevents any eggs produced after mating from hatching.
The release of mosquitos comes as climate change creates more favourable conditions for the insects to survive and reproduce, increasing concerns about the spread of mosquito-borne diseases.
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