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Earth.com (EUA)
Em 2026: 48 notícias
Desde 1995: 143 notícias
Tree growth thrives on diversity - especially in wet forests
Publicado em 05 de agosto de 2025
A globe-spanning analysis led by the University of Michigan now clarifies the picture: biodiversity gives trees a noticeable growth boost almost everywhere, but the advantage is far larger in forests that receive plenty of rain.
“Diversity matters everywhere we look. But in our experiments, we see it matters more in the wetter climates,” said Peter Reich, director of the
Institute for Global Change Biology at Michigan and senior author of the new study.
Forest trials across [...]
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'Living fossil' reveals clues about how animals learned to breathe
Publicado em 01 agosto 2025The African coelacanth, Latimeria chalumnae, earned its “living fossil” nickname because its skeleton seems almost identical to fossils over 65 million years old. Scientists have pored over this deep‑sea relic for decades, assuming its anatomy was already well documented. A new study, however, shows that long‑standing descriptions of the fish’s head muscles were riddled with errors. The research suggests that correcting those mistakes reshapes how biologists [...]ver notícia -
Lessons from the past: Predators are doomed when their prey vanishes
Publicado em 16 julho 2025Across Earth’s long timeline, extinction often seems like a silent erasure. Yet behind many disappearances lies a chain of ecological tension. Researchers at the State University of Campinas (UNICAMP) in Brazil explored predator-prey dynamics. The results of two new studies suggest predator-prey relationships shaped extinction patterns in ancient species. Supported by FAPESP, the work focuses on predators like saber-toothed cats and their herbivore prey in North America. The [...]ver notícia -
Sunflower protein could change the future of sustainable meat
Publicado em 29 junho 2025While soy and pea proteins dominate shelves, scientists are exploring new, lesser-known crops. One such candidate for plant-based meat, sunflower seeds, is now under the spotlight thanks to a recent breakthrough from Brazil and Germany. In a collaborative project between the Institute of Food Technology ( ITAL ), the University of Campinas ( UNICAMP ), and the Fraunhofer IVV Institute in Germany, researchers have created a new plant-based food. The researchers are transforming [...]ver notícia -
How droughts could starve bees and crops
Publicado em 27 junho 2025By the end of this century, drought conditions could leave bees with nectar that’s nearly empty of calories – up to a 95% loss. That’s not just bad news for bees. It’s also bad for plants, crops, and the people who grow and rely on them. In a more moderate future, where rainfall drops by 30 percent, nectar calories could still fall by about a third. That kind of change ripples through entire ecosystems and straight into agriculture. The findings come from [...]ver notícia -
Paleontologists found the oldest ant species on Earth, 113-million-years-old with scythe-like jaws
Publicado em 28 maio 2025Anderson Lepeco, from the Zoology Museum at the University of São Paulo, led a group of researchers who uncovered this ancient marvel. They examined the fossil within layers of rock in northeastern Brazil, helping experts understand more about how early ants appeared on the scene. Clues preserved in amber Experts are calling this fossil a member of the extinct subfamily Haidomyrmecinae, once found only in amber – an ideal situation for paleontologists. Amber is fossilized tree [...]ver notícia -
Microplastics are now invading fully protected marine areas
Publicado em 26 maio 2025Marine protected areas in Brazil are often viewed as safe havens for biodiversity. But even the strictest of these zones aren’t free from pollution. A new study shows that microplastics are turning up in these supposedly untouched waters, raising concerns about the true extent of environmental protection. The research was carried out by scientists from the Federal University of São Paulo (UNIFESP) in collaboration with Australian colleagues. The team examined ten marine [...]ver notícia -
Lost world of giant sloths: Why did they shrink and when did it happen?
Publicado em 25 maio 2025Long ago, the sloth lineup was far more impressive. Some even walked the earth instead of hanging in the treetops – and they came in all shapes and sizes, from modest desert-dwellers to elephant-sized giants. New research from the Florida Museum of Natural History and other institutions is offering fresh insight into this now-extinct diversity. Scientists combined fossil measurements, DNA, and ecological data to uncover why some sloths evolved to become massive, while others [...]ver notícia -
Ultraprocessed foods pose major health risks - especially for kids
Publicado em 02 maio 2025A new study led by Eduardo Augusto Fernandes Nilson from Brazil’s Oswaldo Cruz Foundation ( Fiocruz ), explores how certain eating patterns might drive health issues often mistaken as purely genetic or inevitable with age. Health impacts of ultraprocessed foods Ultraprocessed foods typically contain synthetic additives and other laboratory-based ingredients instead of fresh items. They are often higher in sugar and trans fats and sometimes include artificial colors and flavor [...]ver notícia -
Alcohol's hidden toll on the brain revealed
Publicado em 10 abril 2025window.dicnf = {};(function(){'use strict';/* Copyright The Closure Library Authors. SPDX-License-Identifier: Apache-2.0 */ var r=this||self;function aa(a){r.setTimeout(()=>{throw a;},0)};function v(a){v[" "](a);return a}v[" "]=function(){};var ba={},w=null;let ca=void 0;function A(a,b=!1){return b&&Symbol.for&&a?Symbol.for(a):a!=null?Symbol(a):Symbol()}var B=A(),E=A("m_m",!0);const F=A("jas",!0);var G={};function H(a,b){return b===void [...]ver notícia