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WION (Índia)
Em 2024: 3 notícias
Desde 1995: 8 notícias
Screaming a defence mechanism? These frogs cry because they cannot physically fight predators
Publicado em 15 abril 2024
The crybabies have a permanent place in the Animal Kingdom as full-fledged species. Researchers, for the first time, have identified ear-piercing 'screams' of a tiny amphibian in distress. But their frequency totally bypasses the human ear.
But the animals who can hear these frogs scream find it incredibly unpleasant. Interestingly, this crybaby aptitude is a survival skill for the leaf litter frog (Haddadus binotatus).
When they are attacked, they do not physically fight back but [...]
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Amazon rainforest to reach 'tipping point' by 2050 due to 'stress': Study
Publicado em 15 fevereiro 2024The Amazon rainforest is facing a barrage of pressures that might tip it into large-scale ecosystem collapse as soon as 2050, according to new research Wednesday warning of dire consequences for the region and the world. The Amazon, which holds more than 10 per cent of the world's biodiversity, helps stabilise the global climate by storing the equivalent of around two decades of emissions of planet-warming carbon dioxide. But stress from deforestation, drought, fire and rising [...]ver notícia -
Jellyfish with possibly venomous bright red cross and 240 tentacles found near remote deep-sea volcano
Publicado em 08 fevereiro 2024Scientists have described a new jellyfish species with a unique red stomach resembling the Cross of St. George. According to the research published in Zootaxa journal, the St George's Cross Medusa has some striking features like 240 tentacles and a red cross in its stomach, which seems evident when viewed from above. Captured in 2002, the scientists identified the new species as Santjordia pagesi, referring to Saint George in Catalan. A remotely operated vehicle (ROV), 812 meters [...]ver notícia -
Thousands of Ancient Structures Are Still Hidden Deep In the Amazon, Study Says
Publicado em 10 outubro 2023Scientists have estimated that anywhere from 10,000 and 24,000 archaeological sites made by pre-Columbian Indigenous peoples lie hidden beneath the forest canopies of the Amazon Basin, according to a new study. In other words, ancient earthworks that are already known in the Amazon represent only a small fraction of the predicted total, hinting that 91 to 96 percent of Pre-Columbian Amazonian sites remain undiscovered. The results shed new light on the complex and fascinating past of the [...]ver notícia -
The Amazon may contain thousands of undiscovered ancient structures
Publicado em 06 outubro 2023There are probably more than 10,000 undiscovered pre-Columbian archaeological sites hidden in the Amazon, researchers have concluded after surveying a fraction of the sprawling rainforest. The study adds to growing evidence suggesting that the region isn’t a pristine tropical forest, but has been significantly altered by Indigenous societies that have inhabited it for more than 12,000 years. Luiz Eduardo Oliveira e Cruz de Aragão at the National Institute for Space Research [...]ver notícia -
'Plastic' rocks found on remote Brazil islands, scientists raise concerns
Publicado emScientists have long been intrigued by the geology of Brazil's volcanic Trindade Island, but recent discoveries of plastic rocks in this remote turtle habitat have raised concerns. On the island, situated almost 1,140 kilometres (708 miles) from the state of Espirito Santo in the southeast, melted plastic has interwoven itself with rocks, which geologists say is proof of humans' growing influence over the earth's geological cycles. “This is new and terrifying at the same [...]ver notícia -
Discovery of Saturn-like ring around trans-Neptunian object Quaoar amazes astronomers
Publicado em 08 fevereiro 2023Astronomers were left stunned after they spotted a Saturn-like ring of dust and debris around a dwarf planet called Quaoar. The dwarf planet Quaoar was named after a god of creation in Native American mythology. Quaoar is one of the trans-Neptunian objects and it was discovered in 2002. A new study published on Wednesday revealed that Quaoar, which is a mini-planet orbiting in the outer reaches of the solar system, has a ring that defies the rules of physics. The study is [...]ver notícia -
'New electric eel species produces strongest animal shock'
Publicado em 11 setembro 2019What was once known as a single species of electric eel is actually three different species, with one of the newly classified organism producing the highest voltage discharge of any known animal, according to a study. The research, published in the journal Nature Communications, offers new insights into the origin and production of strong electric discharges in fishes. Electric eels belong to the knifefish family, and are closely related to catfish and carp than to other eel families, the [...]ver notícia