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31 w

Tiny worm makes for big evolutionary discovery: Scientists describe 'Uncus,' the oldest ecdysozoan

Tiny worm makes for big evolutionary discovery: Scientists describe 'Uncus,' the oldest ecdysozoan

Everyone has a past. That includes the millions of species of insects, arachnids, and nematode worms that make up a major animal group called the Ecdysozoa.

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31 w

New fossil reveals the evolution of flying reptiles

New fossil reveals the evolution of flying reptiles

The pterosaurs are extinct flying reptiles that lived alongside their close relatives, the dinosaurs. The largest of these reached 10 m in wingspan, but early forms were generally limited to around 2 m. In a paper, a team led by paleontologist Dr. David Hone of Queen Mary University of London and published in the journal Current Biology describes a new species of pterosaur that helps to explain this important transition.

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31 w

Redefining net zero will not stop global warming, scientists say

Redefining net zero will not stop global warming, scientists say

In a study, led by the University of Oxford's Department of Physics and published 18 November in Nature, an international group of authors who developed the science behind net zero demonstrate that relying on 'natural carbon sinks' like forests and oceans to offset ongoing CO2 emissions from fossil fuel use will not actually stop global warming.

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31 w

Nanorobots move closer to clinical trials with new model that helps them navigate through the bloodstream

Nanorobots move closer to clinical trials with new model that helps them navigate through the bloodstream

From repairing deadly brain bleeds to tackling tumors with precise chemotherapy, micro/nano-robots (MNRs) are a promising, up-and-coming tool that have the power to substantially advance health care. However, this tool still has difficulty navigating within the human body—a limitation that has prevented it from entering clinical trials.

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31 w

Researchers characterize regulating mechanism of orderly zygotic genome activation in early embryos

Researchers characterize regulating mechanism of orderly zygotic genome activation in early embryos

Early development of an embryo is solely supported by maternally deposited RNAs and proteins until its own genome is activated through a process called zygotic genome activation (ZGA). Recent work by Chinese scientists has revealed a novel molecular mechanism of how a totipotent chromatin is established and an orderly zygotic genome activation is controlled in early Drosophila embryos.

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31 w

Human brain organelles study shows dopamine neurons must work a lot harder than those in primate relatives

Human brain organelles study shows dopamine neurons must work a lot harder than those in primate relatives

A team of neurologists, bioengineers and radiologists has found that two neurons in the human brain that code for dopamine production have to work harder than similar cells in primate relatives. The group has posted a paper describing their work on the bioRxiv preprint server.

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31 w

Bee alert: Pesticides pose a real threat to more than 70% of wild bees

Bee alert: Pesticides pose a real threat to more than 70% of wild bees

A new study reveals alarming risks that pesticides pose to ground-nesting bees, which are crucial for pollination and food production. As agriculture increasingly relies on pesticides to protect crops, the unintended consequences for these essential pollinators are becoming clearer.

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31 w

A new method for creating a quantum gas

A new method for creating a quantum gas

Cooling atomic gases to the quantum regime often involves time-consuming steps. Electromagnetically induced transparency now achieves quantum degeneracy with high efficiency.

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31 w

A single cell's siesta: How non-moving single-celled organisms manage to avoid bright light

A single cell's siesta: How non-moving single-celled organisms manage to avoid bright light

Too much of a good thing is no good at all. Living organisms enjoy sunlight—in fact, they need it to stay alive—but they tend to avoid light that is too bright. Animals go to their shelter, humans have a siesta, even plants have mechanisms to avoid an overdose of light. But how do non-moving single-celled organisms deal with light that is too intense? Researchers at the University of Amsterdam have discovered the surprising answer.

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31 w

Citizen scientists help explain magenta aurora over Japan

Citizen scientists help explain magenta aurora over Japan

Citizen scientists in Japan enabled researchers to learn why May 2024's aurora appeared a magenta color over the country. This effort in extending research beyond academies and laboratories has greater consequences for humanity than explaining pretty lights.

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