Ants can 'sniff out' cancer

Cancer detection is a major public health challenge, and the methods currently available to achieve it, for example MRIs and mammograms, are often expensive and invasive. This limits their large-scale use. To bypass these ...

How do spiders hunt 'in unison'?

Within the 50,000 known species of spiders about 20 have developed a permanent social life characterized by a remarkable cooperation. Among these, one or two species hunt "in packs," such as the Anelosimus eximius spiders ...

Rats can estimate their timing accuracy

Thanks to their capacity for introspection, human beings are able to estimate the duration of their actions. When they perform a task—especially a time-based task—they can evaluate their performance and correct themselves ...

Earth's water was around before Earth

To understand how life emerged, scientists investigate the chemistry of carbon and water. In the case of water, they track the various forms, or isotopes, of its constituent hydrogen and oxygen atoms over the history of the ...

Unveiling the secrets of biofilms

Most bacteria have the ability to form communities, biofilms, that adhere to a wide variety of surfaces and are difficult to remove. This can lead to major problems, for example in hospitals or in the food industry. Now, ...

Before horses, ass hybrids were bred for warfare

The 4,500-year-old iconography and texts from Mesopotamia show that the elite used equids for travel and warfare; however, the nature of these animals remained mysterious. In Science Advances (January 14, 2022), a team from ...

Reducing air pollution: Policies that pay off

Reducing fine particle mortality in a conurbation by two-thirds could be achieved at a cost that is much lower than the value of the societal and economic benefits obtained, according to a study by a multidisciplinary team ...

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