Tulsa massacre analysis and a genetically modified mosquito release are two important updates to 2021 stories.
that was further along in testing, approving it for children who live in sub-Saharan Africa and other places with the deadliest species of the malaria-causing parasite,. Of the estimated 409,000 people who died from malaria in 2019, two-thirds were under age 5. Although groundbreaking, the vaccine — called RTS,S or Mosquirix — is not a magic bullet. The four-dose regimen prevents only about 4 in 10 malaria cases and 3 in 10 severe cases.
in the Florida Keys, Susan Milius reported . Designed as living pesticides by the biotech company Oxitec, male GMmosquitoes mate with local females of this hard-to-eradicate species and pass along a gene that kills daughters in the wild before they can bite. Sons grow up to trick more females into doomed mating. Eventually, the population of this spreader of dengue and Zika should dwindle.: GM males that hatched from eggs succeed in wooing Floridian females, test watchers report.
— and some even extinct . While some of these species were charismatic marsupials such as the koala, many were plants and invertebrates that typically garner far less attention.had some part of their ranges badly burned by the fires.
. But in a rare piece of good news, surveys in March and September turned up multiple individuals of two species that researchers had feared were extinct: the Kangaroo Island assassin spider and Palethorpe’s pinwheel snail . Finding two assassin spiders that had managed to hang on in a tiny patch of unburnt habitat was “amazing,” Marsh says.
The Palethorpe’s pinwheel snail , feared lost after Australia’s wildfires, was found in abundance in limestone crevices and under rock ledges.
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