Zientzia hedabideetan

Europako landaguneetako hegaztien populazioak beherakada handia izan du 30 urte hauetan: 431 milioi txori gutxiago daude. Batez ere, XX. mendeko nekazaritza eta abeltzaintza ustiaketak eragin du hori; izan ere, lurren kudeaketa industrialak degradatu egin du bioaniztasuna.

All spiders are predators, but most of them are small and have rudimentary defences against larger animals that in turn prey on them. Spiders have thus evolved a range of predatory behaviours that, at the same time, allow them to evade the threat of predation. Some of the most effective strategies involve deceiving ants.

Startup Knightscope is preparing to roll out human-size robot patrols.

Call it the climate change conundrum: Even though humans are pumping more greenhouse gases than ever into the atmosphere, the world’s average air temperature isn’t rising as quickly as it once did. Some scientists have proposed that the missing heat is actually being trapped deep underwater by the Pacific Ocean. But a new modeling study…

An ancient meteorite has now yielded the first physical evidence that intense magnetic fields played a major role in the birth of our solar system.

El progreso hacia la eliminación del sarampión se ha estancado, según ha alertado hoy la Organización Mundial de la Salud. Según el informe presentado, las causas del retroceso se atribuyen a la falta de financiación y al debilitamiento de los sistemas sanitarios.

Depression causes a greater burden of disability than any other condition, yet it is widely undiagnosed and untreated. In this special collection of articles, Nature asks why that burden is so great, how science is helping and where research is running aground.

Weapons that rely on artificial intelligence to decide what to target could become increasingly difficult to control, critics warn.

It’s a cycle nearly as old as human history. Plow, plant, harvest, and repeat. It worked for our ancestors, and it’s working for us now, though with ever more problems, from obliterating soil nutrients to encouraging erosion. And things may get worse in the future, too, when climate change threatens—whether through drowning or drought—to topple…