Skepticism about claim human ancestors nearly went extinct
Could the lives of the eight billion people currently on Earth have depended on the resilience of just 1,280 human ancestors who very nearly went extinct 900,000 years ago?
Could the lives of the eight billion people currently on Earth have depended on the resilience of just 1,280 human ancestors who very nearly went extinct 900,000 years ago?
Evolution
Sep 15, 2023
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Plants range from simple seaweeds and single-celled pond scum, through to mosses, ferns and huge trees. Paleontologists like us have long debated exactly how this diverse range of shapes and sizes emerged, and whether plants ...
Evolution
Sep 9, 2023
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A new study has uncovered intriguing insights into the evolution of plant biology, effectively rewriting the history of how plants evolved over the past billion years.
Plants & Animals
Sep 5, 2023
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When you think of moths, do you see holes in your clothes, pests in the pantry, or pesky insects drawn to night lights spoiling your social BBQ? Or worse, do you have an irrational fear of moths? (That's called mottephobia).
Plants & Animals
Sep 4, 2023
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More than 100 years of observations in nature have revealed a universal pattern of species abundances: Most species are rare but not very rare, and only a few species are very common. These so-called global species abundance ...
Ecology
Sep 4, 2023
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Over the past 500 million years, different single-celled organisms in the oceans have discovered at different times and also under very different conditions how to build a 'shell' around their single cell. "Six different ...
Earth Sciences
Aug 24, 2023
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Conservativism and liberalism each represent generally desirable "values" and generally undesirable "vices" in the nation's political landscape, according to newly published research led by a University of Wyoming psychology ...
Social Sciences
Aug 21, 2023
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Biological cells undergo a process known as "heat stress response" when exposed to excessively high temperatures. Heat stress triggers a cascade of signaling mechanisms to produce a variety of heat shock proteins (Hsps), ...
Cell & Microbiology
Aug 21, 2023
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A team of paleontologists from Brazil, Argentina and the U.S., has found the fossilized remains of a creature they describe as a precursor to the pterosaur at a dig site in Rio Grande do Sul, Brazil. In their paper published ...
Group A streptococci are fairly common bacteria that can cause, among other things, strep throat or impetigo. However, if the bacteria become invasive, the situation can become very dangerous. In this case, the name sometimes ...
Cell & Microbiology
Aug 17, 2023
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