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Brachycephalus dacnis This flea tod measures just 6.95 millimeters in length. A separate research team had earlier identified another species within the same genus, B. pulex , in the southern Bahia state of Brazil. One of the individuals measured a mere 6.45 mm in length. Miniature size This marks the seventh species of flea toad to be described within the genus Brachycephalus . The toad's small size is an adaptation to its unique environment. Flea toads are tiny adults, [...]

According to a new study, colonies of ants began farming fungi when an asteroid struck Earth 66 million years ago. This asteroid impact caused a global mass extinction but also created ideal conditions for fungi to thrive. Ant agriculture began 66 million years ago in the aftermath of the asteroid that doomed the dinosaurs." ScienceDaily. ScienceDaily, 3 October 2024. Study finds that the mass extinction caused by an asteroid about 66 million years ago led to critical changes in bird [...]

Smithsonian's National Museum of Natural History researchers state that this evolutionary partnership became stronger 27 million years ago, and exists even today. A yeast-farming worker of the fungus-farming ant species Cyphomyrmex cf. rimosus, collected in Mindo, Ecuador, in 2011, on its fungus garden.A new surprising study has discovered that ants began farming fungi around 66 million years ago, shortly after a devastating asteroid impact that killed dinosaurs. “Ants have been [...]

Bacteria that live in soil and help roots fix nitrogen can boost certain plants' capacity to reproduce, according to an article published in the American Journal of Botany describing a study of this mechanism in Chamaecrista latistipula, a legume belonging to the Fabaceae family, which includes beans and peas. Bacteria in the soil enhance the attractiveness of the plant's flowers to pollinators via a type of relationship known as mutualism that is widespread in [...]

High levels of carbon dioxide (CO2) in the atmosphere can alter not only the climate of our planet but also the functioning of our cells. The gas interacts with hydrogen peroxide (H2O2), which performs various functions in the human body, giving rise to a potent oxidant called peroxymonocarbonate. "More and more evidence is emerging that peroxymonocarbonate is important in both cells' adaptive responses via redox signaling and in cellular dysfunction. There is also [...]

With 84 species currently described, Characidium may be the most diverse fish genus known to science. This is the conclusion reached by Brazilian scientists after analyzing more than 4,400 specimens of this genus of South American darters endemic to the Neotropical region and known in Brazil as mocinha or charutinho. Study identifies possible novel species in fish genus endemic to Neotropics retrieved 18 September 2024 from [...]

Scientists in Brazil have found more evidence of microplastics infiltrating the human body. While it has been previously reported that microplastics were found in human brain tissue, this recent study discovered these tiny particles in the olfactory bulbs of the brain which are responsible for processing smells. Microplastics from clothes and packaging Fifteen human cadavers were observed in the study and of those 15, eight had evidence of microplastics in their brain tissue, [...]

A study conducted at the University of São Paulo (USP) has investigated the extent to which climate-smart agriculture (CSA), an integrated approach involving methods and practices designed to make farming more sustainable and economically, socially and environmentally resilient, affects Brazil's greenhouse gas (GHG) emissions. To find out how much CSA affects GHG emissions, scientists at the Center for Nuclear Energy in Agriculture (CENA-USP) and Luiz de Queiroz College of [...]

Researchers have discovered that SARS-CoV-2 manipulates the human immune system by forcing cells to produce non-functional proteins, hindering the body’s antiviral defenses. This groundbreaking study by teams from prestigious Brazilian universities highlights potential targets for new COVID-19 treatments, emphasizing the importance of restoring normal RNA processing in infected cells. SARS-CoV-2’s Immune Evasion Strategies To evade the human [...]