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Em 2024: 3 notícias
Desde 1995: 4 notícias
How the asteroid that killed the dinosaurs made ants into farmers
Publicado em 22 outubro 2024
Madeleine Finlay hears from Ted Schultz, curator of ants at the Smithsonian National Museum of Natural History, about his recent study into the origins of fungi farming in ants.
He tells Madeleine about the incredibly complex way that ants cultivate and protect their fungi gardens, and how the asteroid that hit Earth 66 million years ago could have kickstarted it all
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The Push for a Better Dengue Vaccine Grows More Urgent
Publicado em 11 abril 2024The outbreak of dengue fever that has unfolded in Latin America over the past three months is staggering in its scale — a million cases in Brazil in a matter of weeks, a huge spike in Argentina, a state of emergency declared in Peru and now another in Puerto Rico. It forewarns of a changing landscape for the disease. The mosquitoes that spread dengue thrive in densely populated cities with weak infrastructure, and in warmer and wetter environments — the type of habitat that is [...]ver notícia -
Brazil Has a Dengue Emergency, Portending a Health Crisis for the Americas
Publicado em 10 fevereiro 2024Brazil is experiencing an enormous outbreak of dengue fever, the sometimes fatal mosquito-borne disease, and public health experts say it is a harbinger of a coming surge in cases in the Americas, including Puerto Rico. Brazil’s Health Ministry warns that it expects more than 4.2 million cases this year, outstripping the 4.1 million cases the Pan-American Health Organization recorded for all 42 countries in the region last year. Brazil was due for a bad dengue year — numbers [...]ver notícia -
A shocking find : new high-voltage electric eels revealed
Publicado em 10 setembro 2019Call it a shock discovery: DNA research has revealed two entirely new species of electric eel in the Amazon basin, including one capable of delivering a record-breaking jolt. The findings are evidence, researchers say, of the incredible diversity in the Amazon rainforest — much of it still unknown to science — and illustrate why it is so important to protect a habitat at risk from deforestation, logging and fires. “In spite of all human impact on the Amazon rainforest in the [...]ver notícia