Ecology

The climate and the arrival of Homo Sapiens would have made the "Hobbits" of Flores extinct: the study

The climate and the arrival of Homo Sapiens would have made the “Hobbits” of Flores extinct: the study

A new paleoclimatic study conducted on a stalactite from the island of Flores, Indonesia, shows a marked decline in rainfall between 76,000 and 55,000 years ago, with a peak of aridity shortly before the disappearance of Homo floresiensisone of the most curious and well-known extinct human species, which lived between 700,000 and 50,000 years ago and is considered an example ...

The strongest web in the world is that of female Darwin's bark spiders

The strongest web in the world is that of female Darwin’s bark spiders

In the forests of Madagascar hides the Darwin’s bark spider (Caerostris darwini), a natural “engineer” famous for weaving the cobwebs toughest on the planet. These structures, long too 25 meters and wide up to 2.8 square metershave been found suspended above rivers and are made of silk ten times stronger than Kevlarthe material of bulletproof vests. However large they are, ...

The Apocalypse Glacier in Antarctica is increasingly unstable: the consequences of a possible collapse

The Apocalypse Glacier in Antarctica is increasingly unstable: the consequences of a possible collapse

Credit: NASA The Thwaites Glacierknown as “glacier of the Apocalypse”, in West Antarcticait’s becoming increasingly unstable. Its ice shelf floating on the ocean is fracturing and its anchor point to land is weakening. If the glacier were to disintegrate and melt completely, the sea ​​level could rise by more than 1 metre. The mechanism by which Thwaites is losing ice ...

The Gulf of Suez is widening by half a millimeter per year: new study

The Gulf of Suez is widening by half a millimeter per year: new study

The Red Sea, the Gulf of Suez and the Gulf of Aqaba. Credit: NASA The Gulf of Suezthe arm of the sea that extends in the northern part of Red Sea delimiting the Sinai peninsula, it progressively widens at the rate of approximately 0.5 mm per year. It is the result of the study by a team of Chinese, French ...

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Comet 3I/ATLAS is rich in precursors of life molecules: ALMA’s discovery and new images

Image of the interstellar comet 3I/ATLAS obtained by the Hubble Space Telescope on November 30, 2025. Credits: NASA, ESA, STScI, D. Jewitt (UCLA), M.–T. Hui (Shanghai Astronomical Observatory). Image Processing: J. DePasquale (STScI). The radio interferometer ALMAin Chile, found that the comet 3I/ATLAS releases copious amounts of methanol (CH3OH) e of hydrogen cyanide (HCN), molecules involved in the synthesis of ...

December 11, 2025, how many °C was there today in previous years? Let's compare temperatures

December 11, 2025, how many °C was there today in previous years? Let’s compare temperatures

Many times we find ourselves wondering “But was it that cold last year?” or “But was it this hot in other years?”. These are questions that can be answered by searching through the meteorological archives, and that’s what we did: we bring you the temperatures ofDecember 11th scheduled for Milan, Rome, Naples And Palermocompared with those of the same date ...

What happens to the human body with tattoos: here's how they are done

What happens to the human body with tattoos: here’s how they are done

When we do a tattoo, what happens is that one or more needles deposit the ink inside our skin thanks to the use of a special machine. But why does the ink stay still inside the skin? It’s thanks to ours immune systemspecifically thank you macrophages, that is, cells that try to eliminate foreign bodies when they enter our skin. ...

New discovery in Pompeii: here is the technique that made Roman concrete "immortal"

New discovery in Pompeii: here is the technique that made Roman concrete “immortal”

If Roman concrete lasted so long through the millennia, we finally know why: during the excavations of a Roman construction site that had remained intact since 79 AD and recently discovered in Pompeii, the use of “hot mixing“, a technique that gave the material self-repairing and resistance properties. Admir Masic, professor of civil and environmental engineering at the Massachusetts Institute ...