Phys.org  March 15, 2022 A biotech firm is seeking permission to release 2 million genetically modified male mosquitoes, with a “kill switch” built into their DNA, into the open air of California. When they mate with wild insects, their offspring die, causing an eventual collapse of the population. They are targeting swarms of the mosquito, first detected in Los Angeles County in 2011, which have since spread northward into 20 California counties. Unlike California’s native mosquitoes which emerge at dusk, these black-and-white-striped invaders hunt for blood during the day, when people are outside. They transmit potentially fatal Zika, dengue, yellow […]