30 November 2022
Chicago 12, Melborne City, USA
Sience

Scientists Reexamine Why Zebra Stripes Mysteriously Repel Flies

For the current study, Tombak, then a PhD candidate at Princeton, and her team wanted to test stripe width to see if narrower ones might be even more repulsive to flies—a potential evolutionary advantage that would explain the difference between zebra species. They also restricted their experiment to close-range encounters to rule out the theory […]

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Sience

Y chromosome degeneration: Amami spiny rat could be a glimpse of our genetic future

By Michael Le Page The Amami spiny rat ASATO KUROIWA For any mammal, the loss of the Y chromosome should mean the loss of males and the demise of the species. So how the Amami spiny rat manages without a Y chromosome has puzzled biologists for decades. Now, Asato Kuroiwa at Hokkaido University in Japan […]

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Sience

Newborn female mice live longer if they smell older females’ urine

The scent of older females causes young female mice to reach puberty later and extends their lifespan – the first known case of smell affecting lifespan in mammals, though males aren’t affected Health 24 November 2022 By Alice Klein A mouse mother and her young Juniors Bildarchiv GmbH / Alamy Stock Photo Newborn female mice […]

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Sience

The Hibernator’s Guide to the Galaxy

Scientists are on the verge of figuring out how to put humans in a state of suspended animation. It could be the key to colonizing Mars.

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Sience

To Ditch Pesticides, Scientists Are Hacking Insects’ Sex Signals

Proving that this way of producing pheromones works, and that they’re effective, has taken almost a decade. “We are now looking at scaling up the process and introducing them in the market,” says Löfstedt. This research also opens the door to using sex disruption to protect other commodity crops from pests. “It should be possible […]

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Sience

Oldest army ant found in 35-million-year-old Baltic amber

An unexpected discovery in a piece of amber stored at Harvard University since the 1930s reveals that army ants once lived in Europe Life 23 November 2022 By Christa Lesté-Lasserre The ancient army ant embedded in amber Christine Sosiak The world’s oldest army ant has been identified in a block of 35-million-year-old Baltic amber. The […]

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Sience

A New Explanation for How Fireflies Flash in Sync

A similar scenario played out in the 1990s, when a Tennessee naturalist named Lynn Faust read the confident published assertion of a scientist named Jon Copeland that there were no synchronous fireflies in North America. Faust knew then that what she had been watching for decades in the nearby woods was something remarkable. Faust invited […]

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Sience

Gene drive could be used to wipe out invasive mice on islands

A ‘gene drive’ that spreads through a population and makes females infertile has been demonstrated to work in a mammal for the first time Life 11 November 2022 By Michael Le Page Mice on a farm in Australia Matthew Abbott/Panos Pictures For the first time, researchers have created a gene drive – a kind of […]

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Sience

Ants appear to feel more optimistic after a sugary treat

A sweet reward influences ants’ decision-making when they encounter ambiguous situations, hinting that they might have internal states like our emotions Life 11 November 2022 By Robert Barrie Ants were given drops of sugar solution or bitter quinine solution in laboratory tests Julia Giehr Ants appear to be optimistic when making decisions based on ambiguous […]

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Sience

Ants have evolved to farm plants on at least 15 separate occasions

Many species of tree-living ants cultivate plants that grow on trees either for food or shelter, but there is a debate over whether the practice should be considered agriculture Life 10 November 2022 By Michael Le Page Philidris cordata ants have a symbiotic relationship with Hydnophytum formicarum plants Emanuele Biggi / naturepl.com The cultivation of […]

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