Archive for the ‘evolution’ category: Page 8

Jul 3, 2023

AI and Humanity’s Future

Posted by in categories: augmented reality, automation, big data, computing, disruptive technology, evolution, futurism, innovation, internet, machine learning, robotics/AI, singularity, supercomputing, transhumanism

The concept of a computational consciousness and the potential impact it may have on humanity is a topic of ongoing debate and speculation. While Artificial Intelligence (AI) has made significant advancements in recent years, we have not yet achieved a true computational consciousness that can replicate the complexities of the human mind.

It is true that AI technologies are becoming more sophisticated and capable of performing tasks that were previously exclusive to human intelligence. However, there are fundamental differences between Artificial Intelligence and human consciousness. Human consciousness is not solely based on computation; it encompasses emotions, subjective experiences, self-awareness, and other aspects that are not yet fully understood or replicated in machines.

The arrival of advanced AI systems could certainly have transformative effects on society and our understanding of humanity. It may reshape various aspects of our lives, from how we work and communicate to how we approach healthcare and scientific discoveries. AI can enhance our capabilities and provide valuable tools for solving complex problems.

However, it is important to consider the ethical implications and potential risks associated with the development of AI. Ensuring that AI systems are developed and deployed responsibly, with a focus on fairness, transparency, and accountability, is crucial.

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Jul 2, 2023

Where do butterflies come from? Scientists discover origin of species

Posted by in categories: biotech/medical, evolution

GAINESVILLE, Florida (KXAN) — Did you ever wonder where butterflies came from? A recently published research paper has revealed a surprising origin: North and Central America.

The paper, published in Nature Ecology & Evolution, examined DNA from nearly 2,300 species of butterfly. The team used the data to develop a family tree and track down where the species came from.

Turns out, butterflies evolved from nocturnal moths around 101.4 million years ago.

Jul 2, 2023

The Most Dangerous Weapon is NOT Nuclear

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

Sources & further reading:
This video was made possible through a grant by Open Philanthropy.
Check out the biorisk career guide from 80,000 hours:
Find the Map of Evolution and other fascinating infographic posters on the kurzgesagt shop here:

A breathtaking scientific revolution is taking place – biotechnology has been progressing at stunning speed, giving us the tools to eventually gain control over biology. On the one hand solving the deadliest diseases while also creating viruses more dangerous than nuclear bombs, able to devastate humanity.

Continue reading “The Most Dangerous Weapon is NOT Nuclear” »

Jul 2, 2023

Astronomers identify 19 new Wolf-Rayet stars in Andromeda Galaxy

Posted by in categories: cosmology, evolution

Wolf-Rayet (WR) stars are not only hot, bright, and massive. They are also in an advanced stage of evolution, losing mass at an incredible rate.

While surveying the neighboring Andromeda galaxy, astronomers discovered a new batch of Wolf-Rayet stars.

Some huge stars in galaxies may develop into Wolf-Rayet stars before going supernova. That’s why, Wolf-Rayet stars are intriguing candidates for studying the universe’s evolution.

Jun 29, 2023

Harnessing ancient genomes to study the history of human adaptation

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

Ancient genomes can inform our understanding of the history of human adaptation through the direct tracking of changes in genetic variant frequency across different geographical locations and time periods. The authors review recent ancient DNA analyses of human, archaic hominin, pathogen, and domesticated animal and plant genomes, as well as the insights gained regarding past human evolution and behaviour.

Jun 26, 2023

Proof of Evolution You Can Find on Your Body (Video)

Posted by in categories: biotech/medical, evolution

The human body reveals compelling evidence of evolution. By examining its intricacies, we uncover remnants of our animal ancestors. One such example is the palmaris longus, a vestigial muscle in the forearm. Although it no longer affects grip strength, it can be removed for reconstructive surgeries. Our outer ear muscles also bear witness to our evolutionary past. While their movement is limited to humans, they once aided early nocturnal mammals in sound localization. Today, electrodes can detect slight muscle activity in response to sudden sounds.

Goosebumps offer another intriguing clue. When we’re cold, tiny muscles connected to body hairs contract, causing the hair to stand upright, and creating bumps on the skin. This response, useful for furry mammals’ insulation, can also be triggered by intense emotions or surprising musical moments in humans. Lastly, the tailbone, or coccyx, composed of fused vertebrae, represents the vestiges of our ancestors’ tails. Although all humans develop a tail during embryonic stages, it regresses and disappears, except in rare cases of a vestigial tail present at birth. These remnants within our bodies provide tangible proof of evolution. Delving into these fascinating traces deepens our understanding of our evolutionary journey and our place in the natural world.

Jun 25, 2023

Spatiotemporal signatures of elastoinertial turbulence in viscoelastic planar jets

Posted by in category: evolution

The interplay between viscoelasticity and inertia in dilute polymer solutions at high deformation rates can result in inertio-elastic instabilities. We show how fluid elasticity has a nonmonotonic effect on jet stability depending on magnitude, creating two distinct regimes. The nonlinear evolution of these instabilities generates a state of elasto-inertial turbulence (EIT) with different spatiotemporal features than Newtonian turbulence. We use high-speed digital schlieren imaging and dynamic mode decomposition to quantify EIT and identify two modes of instability which can lead to a transition to turbulence at a lower Reynolds number with flow-aligned structures in the turbulent region.

Jun 24, 2023

Octo-eyes: Unraveling Octopus Vision with Neural Mapping

Posted by in categories: evolution, mapping, neuroscience

Summary: Researchers mapped neural activity in an octopus’s visual system, revealing striking similarities to humans.

The team observed neural responses to light and dark spots, thereby creating a map resembling the organization of the human brain. Interestingly, octopuses and humans last shared a common ancestor around 500 million years ago, suggesting independent evolution of such complex visual systems.

These findings contribute greatly to our understanding of cephalopod vision and brain structure.

Jun 21, 2023

Introducing Chinmo — The Youth Gene

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

Insects, with their remarkable ability to undergo complete metamorphosis, have long fascinated scientists seeking to understand the underlying genetic mechanisms governing this transformative process.

Now, a recent study conducted by the Institute for Evolutionary Biology (IBE, CSIC-UPF) and the IRB Barcelona has shed light on the crucial role of three genes – Chinmo, Br-C and E93 – in orchestrating the stages of insect development. Published in eLife, this research provides valuable insights into the evolutionary origins of metamorphosis and sheds new light on the role of these genes in growth, development and cancer regulation [1].

Longevity. Technology: Chinmo might sound like a Pokémon character, but the truth is much more interesting. Conserved throughout the evolution of insects, scientists think it, and the more conventionally-named Br-C and E93, could play a key role in the evolution of metamorphosis, acting as the hands of the biological clock in insects. A maggot is radically different from the fly into which it changes – could understanding and leveraging the biology involved one day allow us to change cultured skin cells into replacement organs or to stop tumors in their early stages of formation? No, Dr Seth Brundle, you can buzz off.

Jun 21, 2023

Observations of high-mass star seeds defy models

Posted by in categories: cosmology, evolution

Astronomers have mapped 39 interstellar clouds where high-mass stars are expected to form. This large data set shows that the accepted model of low-mass star formation needs to be expanded to explain the formation of high-mass stars. This suggests the formation of high-mass stars is fundamentally different from the formation of low-mass stars, not just a matter of scale.

High-mass stars play an important role in the evolution of the universe through the release of heavy elements and the produced when a massive star explodes in a supernova. Despite their importance, the way form remains poorly understood due to their rarity.

To better understand massive star formation a team led by Kaho Morii, Patricio Sanhueza, and Fumitaka Nakamura used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe 39 infrared dark clouds (IRDCs). IRDCs are massive, cold, and dense clouds of gas and dust; and are thought to be the sites of massive star formation. The team focused on clouds showing no signs of star formation, to understand the beginning of the formation process before ignite. In the 39 clouds, the team found more than 800 stellar seeds, referred to as molecular cloud cores, which astronomers think will evolve into stars.

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