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Plants & Animals Jun 27, 2024

Three new extinct walnut species discovered in high Arctic mummified forest

In a new study, scientists describe three new, but long-extinct, walnut species on an island above the Arctic Circle. The fossils were discovered further north than any known walnut species, living or extinct, and represent ...

Molecular & Computational biology Jun 27, 2024

Last surviving woolly mammoths were inbred but not doomed to extinction, genomic analysis suggests

The last population of woolly mammoths was isolated on Wrangel Island off the coast of Siberia 10,000 years ago, when sea levels rose and cut the mountainous island off from the mainland.

Plants & Animals Jun 27, 2024

Invasive ants spread by hitchhiking on everyday vehicles

Insects are masters of transportation and get around by flying, crawling, swimming, burrowing, and even gliding. Now, ants have been observed using a new method of getting around: hitchhiking. These social insects pack up ...

Ecology Jun 27, 2024

Rarely seen killer whaler duo spotted twice in one week off Scotland

The duo—known as John Coe and Aquarius—are the last surviving members of the Scottish West Coast Community of orcas, a distinct ecotype distinguished by their unique eyepatch and large size, according to the Hebridean ...

Plants & Animals Jun 27, 2024

Using AI to save the Tasmanian devil

Scientists at the University of Tasmania are using groundbreaking artificial intelligence (AI) technology to tackle the spread of Devil Facial Tumor 2 (DFT2).

Molecular & Computational biology Jun 27, 2024

A new CRISPR-driven technology for gene drive in plants

Weeds are a pesky irritant for most home gardeners, but in large agricultural settings, weeds can pose an especially deadly problem. For example, Amaranthus palmeri, known as Palmer's pigweed, has evolved in many areas to ...

Cell & Microbiology Jun 27, 2024

Aging-emulating biosystem derived from hTSCs

A research team from the Center for Translational Stem Cell Biology (CTSCB) under the LKS Faculty of Medicine at the University of Hong Kong (HKUMed) has developed the world's first cellular system that can be used to rapidly ...

Evolution Jun 27, 2024

Why the harsh Snowball Earth kick-started our earliest multicellular ancestors

For a billion years, single-celled eukaryotes ruled the planet. Then around 700 million years ago during Snowball Earth—a geologic era when glaciers may have stretched as far as the Equator—a new creature burst into existence: ...

Cell & Microbiology Jun 27, 2024

Newly-discovered bacterial regulatory mechanism has implications for antibacterial control measures

Research spearheaded by four biologists within the College of Arts and Sciences at Indiana University Bloomington has uncovered a new regulatory mechanism shared by many bacteria, which may have profound implications for ...

Plants & Animals Jun 27, 2024

New mathematical model sheds light on the absence of breastfeeding in male mammals

Being nursed by a single parent could be an evolutionary strategy to curb the spread of harmful microbes in mammals, according to a novel theory developed by mathematicians.

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