New studies combining genetics and neuroscience offer clues
Centuries of selective breeding of Siamese fighting (betta) fish (Betta splendens) have produced the elaborate colors and patterns that have made them popular pets. But their early domestication was focused on a different signature trait: aggression. In this video, Andrés Bendesky and his team at Columbia University describe how they’ve combined genetics and neuroscience to understand what puts the fight in these fish. The work could help the team and other scientists understand how genes, neurons, and aggression are linked in a variety of animals, including humans.
Read the research paper here: https://www.science.org/doi/10.1126/sciadv.abm4950
00:00 Introduction to Betta Fish Aggression
00:38 Research Focus and Evolution of Aggression
01:39 Genetic Comparisons and Discoveries
02:52 Behavioral Experiments and Findings
03:52 Neuroscientific Insights and Techniques
04:28 Genetic Modifications and Future Research
05:04 Implications for Human Behavior
Published: 15th Oct 2024 06:00:12 By: Science Magazine
Science News Video: This spider crawls like ant to avoid being eaten #science #mimicry
This jumping spider mimics the movements of ant species in its environment to avoid being eaten. The spider’s predators, such as praying mantis, pass up anything that might be an ant to avoid the ants' painful bite.
Read the story: https://www.science.org/content/article/watch-spider-crawl-ant-avoid-being-eaten
Turns out blueberries don't have blue pigment. Instead, structural color from the waxy surface on blueberries gives them their signature color.
Video by Sarah Crespi
Footage: Middleton et al. (2024)/Science Advances
Music: Nguyen Khoi Nguyen
Published: 7th Jun 2024 04:00:11 By: Science Magazine
Science News Video: After 50 years, Lucy faces rivals with other human ancestors
In 1974, paleoanthropologist Don Johanson and student Tom Gray unearthed a 40% complete skeleton of an early human ancestor, fundamentally changing the human family tree. The specimen acquired a nickname that persisted: Lucy, after the Beatles song playing at the fossil hunter’s camp--“Lucy in the Sky with Diamonds.” At 3.2 million years old, some thought her species, Australopithecus afarensis, was close to when the ancestor of humans had split from the ancestor of chimpanzees. But in the past 50 years, discoveries of hominins both older and the same age as Lucy have pushed that split millions of years deeper in time, and challenged her position as mother of us all.
Read the story: https://www.science.org/content/article/was-lucy-mother-us-all-fifty-years-discovery-famed-skeleton-rivals
Published: 28th May 2024 05:23:04 By: Science Magazine
Science News Video: Soccer-playing robots teach themselves to score
Developing athletic ability requires practice, even for robots. Using an approach driven by trial and error called deep reinforcement learning, researchers at DeepMind helped these soccer-playing robots develop skills, agility, and techniques to improve their play--all at a higher level than could be manually programmed. The computer “agents” controlling the robots picked up the rules and nuances of the game by observing human soccer players, then playing against each other in both simulations and using real-life robots. Robots play each other to improve their game, get computational “coaching,” and even mimic defensive moves of human players. While these athletic machines may not be making starting lineups anytime soon, computer scientists hope that this ability to learn and perform complex tasks in unpredictable environments will prove useful well beyond the soccer field.
Read the research paper here: https://www.science.org/doi/10.1126/scirobotics.adi8022
Published: 6th May 2024 03:00:31 By: Science Magazine
Science News Video: The People Who Fly Into Hurricanes (on Purpose)
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Hurricanes are scary and the idea is usually to move away from them as much as possible. Then there are the intrepid scientist-pilots at NOAA who fly right into them. On purpose. And they do it to save lives.
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Published: 15th Oct 2024 05:00:38 By: SciShow
Science News Video: What's the Loudest Possible Sound?
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How many decibels would be recorded by the loudest sound waves your ears could possibly process? The loudest sound might be quieter than you think (because of how sound waves work)...or it might be louder than you think (because of how decibels work).
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If you want to learn about how we can sustainably care for and benefit from nature, start your college journey with Study Hall! Take a college course that starts on YouTube and earn credit before you even apply to college. Find out more at https://link.gostudyhall.com/sust101
When you think about enormous living things, mushrooms and seagrass may not be the first organisms that come to mind. But they should be!
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Published: 11th Oct 2024 05:00:09 By: SciShow
Science News Video: We Don't Know What Causes the World's Worst Pain
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Settle in and grab a painkiller, because these are some of the most painful diseases out there. From trigeminal neuralgia to thunderclap headaches and even jackhammer esophagus, these conditions crank the pain scale to an eleven.
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Published: 10th Oct 2024 05:00:30 By: SciShow
Science News Video: The OTHER Amazing Thing Easter Islanders Did with Rocks
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Did the Easter Islanders really cause their own civilization's collapse? Probably not. In fact, they used rock gardens to grow food sustainably on the island of Rapa Nui for centuries.
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Published: 9th Oct 2024 05:00:27 By: SciShow
Science News Video: Take a close look at a fruit fly's neurons | Science News
In this fruit fly brain, there are precisely two neurons called CT1 neurons that span the width of the eye. Each of these neurons makes over 140,000 synapses and uses its unique position to help the fly sense light and motion.
Read more:
Video: Amy Sterling, Murthy and Seung Labs/Princeton University
Published: 2nd Oct 2024 01:53:07 By: Science News
Science News Video: Watch bacteria found on our teeth rapidly divide and grow | Science News
The filamentous bacterium Corynebacterium matruchotii, found in human dental plaque, has a superpower. It can divide into as many as 14 daughter cells at once, allowing it to rapidly expand its territory. In this video, a single cell divides into many, which also divide into many, and so on until the colony rapidly fills the field of view.
Read more: https://www.sciencenews.org/article/bacteria-unique-mouth-division
Video: Scott Chimileski/Marine Biological Laboratory
This animation shows how the ambipolar electric field works. The most abundant gas in the lower atmosphere, the part we live in, is nitrogen (N2, shown around seven seconds). Pan up to the ionosphere (14 seconds), though, and you’ll find more atomic oxygen. Photons from the sun can collide with oxygen and knock one of their electrons loose, leaving a positively charged oxygen ion behind. The pull between those ions and their lost electrons is the ambipolar electric field, which ties them together.
Read more: https://www.sciencenews.org/article/electric-field-in-earths-atmosphere
Video: NASA's Goddard Space Flight Center
With the recent boom in clean energy development, more and more farmers are interested in leasing their fields to solar power utilities, often forcing them to abandon traditional crop production or grazing in the process. Now researchers in the growing field of agrivoltaics hope to provide scientific insights and guidance to make it possible to produce food and power at the same time. While sheep grazing on solar farms has already demonstrated feasibility and ecological benefits, these researchers are discovering that co-locating crops and solar panels may prove to be a tough row to hoe.
Credits:
Production, Videography and Editing
Luke Groskin
Story Editing
Ashley Yeager
Additional Video and Stills
Center for Energy Education (C.C. BY), Clean Energy Resource Teams (C.C. BY)
Enel North America, Getty, Innover, Kaan Kutural/UC Davis,
National Renewable Energy Laboratory,
One Less Traveled By (C.C. BY), Pond 5, Sol Systems (C.C. BY), Sun’Agri
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Scientists can estimate how much more likely or severe some past natural disasters were due to human-caused climate change. Here’s how.
Credits:
Scriptwriter - Maria Temming
Story editor - Ashley Yeager
Host - Maria Temming
Producer - Luke Groskin
Fact checker- Kyle Planz
Reporter - Maria Temming
Images & video - Luke Groskin
Additional video and stills
ESA, Getty Images, Nature Climate Change NASA, NASA's Goddard Space Flight Center, NASA's Scientific Visualization Studio, NOAA, Pond5, Kevin Reed, Jason Smerdon, Michael Wehner and Park Williams.
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Near the destroyed city of Pompeii, an eerie complex of underground tunnels snake beneath a volcano, and some believe these passages were intended as a gateway to hell. Research reveals exactly why they were built and why they were abandoned.
#ScienceChannel #MysteriesOfTheAbandoned
About Mysteries of the Abandoned:
The world's most incredible engineering projects are revisited to uncover why places full of mysteries and untold secrets are now abandoned ruins.
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Published: 15th Oct 2024 03:00:52 By: Science Channel
Science Channel Video: Crafting the Point of Pointe Shoes Pt 2 | How It's Made | Science Channel
Space conceals a secret structure called spacetime -- a tangible substance that bends, stretches, warps and twists matter into the stars and planets we see around us. In many ways, we're just along for the ride 😎.
About How the Universe Works:
With a cast of experts and eye-popping CGI, we're looking under the celestial hood to tell the greatest story of all -- the story of where we and everything else came from.
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Published: 10th Oct 2024 03:00:22 By: Science Channel
Thu, 10 Oct 2024 23:55:00 GMT The results matched Wall Street expectations. The average estimate of eight analysts surveyed by Zacks Investment Research was also for earnings of 52 cents per share. The maker of industrial and ...
Thu, 10 Oct 2024 17:00:00 GMT The bank, based in Oklahoma City, said it had earnings of $1.24 per share. The company posted revenue of $37.2 million in the period. Its revenue net of interest expense was $24.9 million ...
Thu, 10 Oct 2024 17:00:00 GMT The bank, based in San Francisco, said it had earnings of $1.42 per share. Earnings, adjusted for non-recurring costs, came to $1.52 per share. The results topped Wall Street expectations.
Wed, 09 Oct 2024 17:01:00 GMT ORLANDO, Fla. (AP) — ORLANDO, Fla. (AP) — Voxx International Corp. (VOXX) on Thursday reported earnings of $2.4 million in its fiscal second quarter. The Orlando, Florida-based company said it ...
Wed, 09 Oct 2024 03:48:31 GMT Marlborough, Massachusetts-based Boston Scientific Corporation (BSX) is a developer, manufacturer, and marketer of medical devices for use in various interventional medical specialties worldwide. With ...