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Australia's echidnas reveal a prickly scientific puzzle

An echidna in Tasmania looks very different from one in Western Australia. But the differences run much deeper than appearance. A new review published in Australian Zoologist by University of Tasmania zoologist Stewart Nicol, an associate professor from the School of Natural Scie

Admin Recifes 15/07/2026 2

Although woodland salamanders have looked the same for millions of years, their physiology

For her doctoral dissertation, Yale's Nathalie Alomar decided to study a small amphibian that appeared to have eluded the forces of evolution. She found that there is more to its evolution than meets the eye.

Admin Recifes 15/07/2026 2

Images: Perseverance reaches 'marathon' milestone on Mars

NASA's Perseverance rover appears as a green speck on the Martian surface on June 13, 2026, a day before the robotic explorer marked a distance milestone, having traveled a full marathon (26.2 miles, or 42.195 kilometers) on the Red Planet. Perseverance reached that distance afte

Admin Recifes 15/07/2026 2

A turquoise tint for the Black Sea caused by phytoplankton

The Black Sea sits at the boundary between Europe and Asia and connects to the Mediterranean Sea via a chain of waterways. Its surface often appears dark, but each spring and summer it transforms into a striking expanse of swirling turquoise. The OCI (Ocean Color Instrument) on N

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Scientists discover what triggers belly fat as we age

Aging may trigger the appearance of specialized stem cells that supercharge the body's ability to create new belly fat. The discovery reveals a potential biological driver of middle-age weight gain and a promising target for future anti-obesity treatments.

Admin Recifes 15/07/2026 2

Brain activity under anesthesia challenges what we know about consciousness

The unconscious brain appears to be far more capable than scientists once believed. Researchers found that patients under general anesthesia could still process language at a sophisticated level, distinguishing nouns, verbs, and adjectives while listening to stories. Even more re

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Giant exoplanet may hold a magnetic grip on its host star

Within their planetary systems, stars are continuously shaping their orbiting planets through gravity, radiation and magnetic forces. So far, this relationship has appeared to be a one-way street.

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Disorder creates direction-dependent optics in compound semiconductors

An international research team has demonstrated that the intrinsic disorder of the compound semiconductor CuInSnS₄ can be exploited to influence its optical properties. While the atomic vibrations also sense the local disorder, their response is averaged over many different local

Admin Recifes 15/07/2026 2

What DC's algal bloom reveals about a growing water threat

When bright green water appeared in the newly renovated Lincoln Memorial Reflecting Pool, it drew national attention and sparked political finger-pointing. The culprit: cyanobacteria—sometimes called blue-green algae—a type of bacteria that can produce toxins harmful to people, p

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Should AI chatbots simulate care for students? Alberta teachers say no

Should schools allow AI systems that don't just answer students, but appear to care for them? O recorte ajuda a contextualizar a pauta dentro de Agro.

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AI-generated debate replies outscore real politicians on authenticity and coherence

AI-generated impersonations of political figures are judged by members of the public to be more authentic, relevant and coherent than the speakers' actual debate responses, according to a study appearing in PLOS One, written by Steffen Herbold of the University of Passau in Germa

Admin Recifes 15/07/2026 2

Fish in a polluted Mexican river may mate with the wrong species, leading to hybrid offspr

The byproducts of modern society appear to be messing with the love life of two tiny fish species that have long coexisted in Mexican rivers.

Admin Recifes 15/07/2026 2

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