According to a new study by researchers from Greifswald and Canada, black widows (Latrodectus hesperus) use a unique scent strategy to find their mate. A chemical pheromone slowly decomposes on the female's web, creating ...
Plants & Animals
Sep 29, 2025
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68
Before 2013, divers on North America's west coast rarely saw purple sea urchins. The spiky animals, which are voracious kelp eaters, were a favorite food of the coast's iconic sunflower sea stars. The giant sea stars, recognizable ...
Environment
Sep 29, 2025
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34
Polychlorinated biphenyls, or PCBs, a class of fire-resistant industrial chemicals, were widely used in electrical transformers, oils, paints and even building materials throughout the 20th century. However, once scientists ...
Environment
Sep 29, 2025
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26
In my work as a veterinary pharmacologist, I never know exactly what I'm going to get when I open my email. It could be a request from a veterinarian asking my team to determine the concentration of a drug to treat the shell ...
Veterinary medicine
Sep 29, 2025
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13
The use of artificial intelligence (AI) in public administration is increasing worldwide—including in the allocation of social services such as unemployment benefits, housing benefits, and social welfare. However, an international ...
Economics & Business
Sep 29, 2025
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28
For 10 days in April 2025, Pakistan almost came to a standstill. No freight was moving from its only port city, Karachi, towards the population centers in the north. The cause was the government's announcement of a project ...
Political science
Sep 29, 2025
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20
The UK's new digital ID card scheme, announced by Keir Starmer on September 26, has two big questions swirling around it. Is it a solution to illegal immigration? And will it give the government too much power to monitor ...
Social Sciences
Sep 29, 2025
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28
Researchers at Georgia Tech have analyzed the seasonal differences of sulfate aerosols—a major pollutant in the United States—to examine the long-term impact from sulfur dioxide (SO₂) emission reductions since the enactment ...
Earth Sciences
Sep 29, 2025
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86
A serious illness or injury to a family member is more than a medical crisis. It's a health shock that triggers a ripple effect, forcing families to make difficult trade-offs with their time and money.
Social Sciences
Sep 29, 2025
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14
Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable and permanent ones. But humans aren't the only animals capable of shedding teeth. In fact, most mammals ...
Evolution
Sep 29, 2025
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65
