Tiny 'ice mouse' survived Arctic cold in the age of dinosaurs
Paleontologists working in northern Alaska have discovered a tiny fossil mammal that thrived in what may have been among the coldest conditions on Earth about 73 million years ago.
Paleontologists working in northern Alaska have discovered a tiny fossil mammal that thrived in what may have been among the coldest conditions on Earth about 73 million years ago.
Paleontology & Fossils
Aug 10, 2023
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2452
Epidemiological studies have shown that infertility affects 12% to 15% of couples of reproductive age in developed countries, and at least 25% in underdeveloped ones—overall, 186 million people worldwide. In about 40% of ...
Cell & Microbiology
Aug 3, 2023
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20
The ability of most mammals to maintain a relatively constant and high body temperature is considered a key adaptation, enabling them to successfully colonize new habitats and harsh environments. Eager to determine how this ...
Evolution
Jul 28, 2023
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557
A trio of biologists and environmental scientists, two with the University of Fribourg and the third with the Swiss Institute of Bioinformatics, has found that fully aquatic mammals, such as whales and porpoises, are very ...
When asked to draw their local wildlife, 401 UK schoolchildren aged seven to 11 most commonly drew mammals and birds, while amphibians and reptiles appeared in the fewest drawings, suggesting imbalances in children's ecological ...
Social Sciences
Jul 5, 2023
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17
An international team of ecologists, life scientists, conservationists and biologists has found that humans prey on approximately one-third of all vertebrate species in existence. In their study, reported in the journal Communications ...
A Cretaceous origin for placental mammals, the group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a short time before the dinosaurs ...
Evolution
Jun 27, 2023
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3120
From the 20-foot-long jawbones of the filter-feeding blue whale to the short, but bone-crushing, jaws of the hyena and the delicate chin bones of a human, the pair of lower jawbones characteristic of mammals have evolved ...
Evolution
Jun 27, 2023
2
99
By 2030, if the "30 by 30" initiative supported by more than 100 countries is successful, 30% of our land and ocean ecosystems will be designated protected areas meant to safeguard biodiversity and help limit the impacts ...
Plants & Animals
Jun 26, 2023
0
129
A pair of paleobiologists with the Smithsonian Institution's National Museum of Natural History has found evidence of a long extinct herbivore marine mammal living in what is now the Skooner Gulch Formation in northern California. ...