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Archive for the ‘evolution’ category: Page 29

Oct 25, 2023

Scientists discover a 160-mile-thick layer of molten silicates on Mars

Posted by in categories: evolution, space

Scientists discovered a molten layer at the base of Mars’s mantle that affects its evolution and magnetic field.

A new study has revealed that Mars has a layer of molten silicates at the base of its mantle, above its metallic core. This finding challenges the previous estimates of the internal structure of the red planet, which were based on the first data from the InSight mission.

The InSight mission, which landed on Mars in 2018, deployed a seismometer to measure the seismic waves generated by quakes and meteorite impacts on the planet. By analyzing these waves, scientists could infer the size and density of Mars’s core, mantle, and crust in a series of papers published in 2021.

Oct 24, 2023

The viruses that helped to make you human

Posted by in categories: biotech/medical, evolution

Although they are more commonly associated with causing disease and, at times, devastating pandemics, viruses have also played an important role in human evolution.

Oct 22, 2023

Scientists propose a “missing law” for evolution in the universe

Posted by in categories: evolution, law

They say it could explain the evolution of life, minerals, stars and most everything else in the universe.

Oct 22, 2023

Scientists propose ‘missing’ law for the evolution of everything in the universe

Posted by in categories: evolution, law

The “law of increasing functional information” says that complex systems in nature evolve to become more complex.

Oct 20, 2023

Discord: A Playground for Nation-State Hackers Targeting Critical Infrastructure

Posted by in categories: cybercrime/malcode, evolution, internet

🕵️‍♂️ Nation-state hackers are turning to Discord. Discover how they’re using this social platform for potential cyber-espionage and target critical infrastructure.

Read:


In what’s the latest evolution of threat actors abusing legitimate infrastructure for nefarious ends, new findings show that nation-state hacking groups have entered the fray in leveraging the social platform for targeting critical infrastructure.

Continue reading “Discord: A Playground for Nation-State Hackers Targeting Critical Infrastructure” »

Oct 19, 2023

Vocal functional flexibility in the grunts of young chimpanzees

Posted by in categories: biotech/medical, evolution, genetics

Half a century after its foundation, the neutral theory of molecular evolution continues to attract controversy. The debate has been hampered by the coexistence of different interpretations of the core proposition of the neutral theory, the ‘neutral mutation–random drift’ hypothesis. In this review, we trace the origins of these ambiguities and suggest potential solutions. We highlight the difference between the original, the revised and the nearly neutral hypothesis, and re-emphasise that none of them equates to the null hypothesis of strict neutrality. We distinguish the neutral hypothesis of protein evolution, the main focus of the ongoing debate, from the neutral hypotheses of genomic and functional DNA evolution, which for many species are generally accepted. We advocate a further distinction between a narrow and an extended neutral hypothesis (of which the latter posits that random non-conservative amino acid substitutions can cause non-ecological phenotypic divergence), and we discuss the implications for evolutionary biology beyond the domain of molecular evolution. We furthermore point out that the debate has widened from its initial focus on point mutations, and also concerns the fitness effects of large-scale mutations, which can alter the dosage of genes and regulatory sequences. We evaluate the validity of neutralist and selectionist arguments and find that the tested predictions, apart from being sensitive to violation of underlying assumptions, are often derived from the null hypothesis of strict neutrality, or equally consistent with the opposing selectionist hypothesis, except when assuming molecular panselectionism. Our review aims to facilitate a constructive neutralist–selectionist debate, and thereby to contribute to answering a key question of evolutionary biology: what proportions of amino acid and nucleotide substitutions and polymorphisms are adaptive?

Oct 19, 2023

Moderating the neutralist–selectionist debate: exactly which propositions are we debating, and which arguments are valid?

Posted by in categories: biotech/medical, evolution, genetics

Half a century after its foundation, the neutral theory of molecular evolution continues to attract controversy. The debate has been hampered by the coexistence of different interpretations of the core proposition of the neutral theory, the ‘neutral mutation–random drift’ hypothesis. In this review, we trace the origins of these ambiguities and suggest potential solutions. We highlight the difference between the original, the revised and the nearly neutral hypothesis, and re-emphasise that none of them equates to the null hypothesis of strict neutrality. We distinguish the neutral hypothesis of protein evolution, the main focus of the ongoing debate, from the neutral hypotheses of genomic and functional DNA evolution, which for many species are generally accepted. We advocate a further distinction between a narrow and an extended neutral hypothesis (of which the latter posits that random non-conservative amino acid substitutions can cause non-ecological phenotypic divergence), and we discuss the implications for evolutionary biology beyond the domain of molecular evolution. We furthermore point out that the debate has widened from its initial focus on point mutations, and also concerns the fitness effects of large-scale mutations, which can alter the dosage of genes and regulatory sequences. We evaluate the validity of neutralist and selectionist arguments and find that the tested predictions, apart from being sensitive to violation of underlying assumptions, are often derived from the null hypothesis of strict neutrality, or equally consistent with the opposing selectionist hypothesis, except when assuming molecular panselectionism. Our review aims to facilitate a constructive neutralist–selectionist debate, and thereby to contribute to answering a key question of evolutionary biology: what proportions of amino acid and nucleotide substitutions and polymorphisms are adaptive?

Oct 19, 2023

Scientists propose sweeping new law of nature, expanding on evolution

Posted by in categories: biological, evolution, particle physics, space

WASHINGTON, Oct 16 (Reuters) — When British naturalist Charles Darwin sketched out his theory of evolution in the 1,859 book “On the Origin of Species” — proposing that biological species change over time through the acquisition of traits that favor survival and reproduction — it provoked a revolution in scientific thought.

Now 164 years later, nine scientists and philosophers on Monday proposed a new law of nature that includes the biological evolution described by Darwin as a vibrant example of a much broader phenomenon, one that appears at the level of atoms, minerals, planetary atmospheres, planets, stars and more.

It holds that complex natural systems evolve to states of greater patterning, diversity and complexity.

Oct 17, 2023

Silent Predator Unveiled: Decoding WebWyrm Stealthy Malware affecting 50 countries

Posted by in categories: cryptocurrencies, cybercrime/malcode, employment, evolution, finance, military

In the intricate landscape of global cybersecurity, Webwyrm malware has surfaced as a formidable adversary, casting its ominous shadow across 50 nations and leaving in its wake over 100,000 compromised victims. This insidious digital menace successfully emulates in excess of 1,000 reputable companies globally, with the ensuing potential financial fallout estimated to surpass a staggering $100 million. It is imperative for cybersecurity professionals and organizations alike to comprehend the multifaceted nature of this threat to devise and implement robust defensive strategies effectively.

In the dynamic realm of cyber threats, malicious actors incessantly refine their Tactics, Techniques, and Procedures (TTPs), exploiting extant vulnerabilities and augmenting the efficacy of their malicious campaigns. Webwyrm epitomizes this relentless pursuit of evolution, embodying a level of sophistication reminiscent of infamous cyber threats of yore, such as the notorious ‘Blue Whale Challenge.’

WebWyrm malware orchestrates a complex, deceptive narrative aimed at duping unsuspecting job seekers into relinquishing their cryptocurrency. Initiating contact predominantly via WhatsApp, the malefactors likely leverage data procured from employment portals to pinpoint and engage individuals predisposed to their deceptive overtures. Prospective victims are enticed with promises of lucrative weekly remuneration, ranging between $1200 and $1500, contingent upon the completion of daily task “packets” or “resets.”

Oct 16, 2023

The beauty of collective intelligence, explained by a developmental biologist

Posted by in categories: biotech/medical, evolution, neuroscience

The strange science experiment that blew a worm’s head off… and blew our minds.

This interview is an episode from @The-Well, our publication about ideas that inspire a life well-lived, created with the @JohnTempletonFoundation.

Continue reading “The beauty of collective intelligence, explained by a developmental biologist” »

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