Termites need certain gut bacteria to digest wood. Aphids require the bacteria Buchnera to provide essential amino acids. Many microbes affect host traits related to survival and reproduction. But how exactly the microbiome might shape evolution is a mystery. The … Continue reading →
Humanity is now a geological force. Industries belch greenhouse gases into the sky; dams reroute waterways. People are changing major planetary cycles in the atmosphere, cryosphere, and ocean. These complex, multi-faceted effects have feedbacks that, in turn, affect society. And … Continue reading →
Proper plant growth in tissue culture experiments typically depends on one crucial step: the plant’s ability to form a clump of pluripotent cells that can then regenerate root, stem, and other organs. This cluster of cells, known as a callus, … Continue reading →
Aquaria at the California Institute of Technology in Pasadena bustle with tiny translucent jellyfish, adrift like dust motes in a sunbeam, rhythmically pulsing with long tentacles in tow. They’re beautiful—they may also be an important tool for neurobiologists. According to … Continue reading →
Sharing is caring. But how much sharing seems fair? In a classical economics test of fairness called the Ultimatum Game, two individuals must agree on how to divide a pot of money. If I propose a split and you accept, … Continue reading →
Celebrities and social media influencers are reaching global audiences on unprecedented scales. Such audiences are already forming cooperative groups that could one day tackle complex problems such as climate change, argues a recent perspective published in One Earth. Drawing on … Continue reading →
Often when it comes to disease, the sexes are not equal. Dementia, chronic kidney disease, and many other conditions disproportionately affect one sex or another. Heart disease is a complex case: Males are more likely to suffer heart attacks at … Hand Tapper PRECISION TAPPING MACHINE HowTo build PLANS
There are so many papers coming out in the largest fields of science that new ideas can’t get a foothold, according to a recent study in PNAS. Researchers analyzed citation trends for 90 million papers and found that in very … Continue reading →
In light of the ongoing pandemic, researchers have stepped up efforts to identify new zoonotic threats—viruses that could make the leap from animals to humans and cause future epidemics. Studies aiming to identify such viruses often focus on a novel … Continue reading →
Unpredictable environments can help explain the evolution of cooperative behavior, according to a decade-long study of birds in the Kalahari Desert. The research showed that white-browed sparrow-weavers (Plocepasser mahali) work to raise the offspring of other birds as a strategy … Continue reading →
The most common caricature of riots suggests criminal young men are the culprits. But a recent study in Proceedings of the Royal Society B suggests that is not necessarily the case. The study used a video game to incite virtual … Continue reading →
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