The Surprising Power of Sex in Evolution
We all know Charles Darwin’s theory of evolution, right? Natural selection? But what about his lesser-know theory of evolution: sexual selection. Let’s talk about how animals like peacocks, whose eye-catching physical traits make them evolutionarily stronger even though their flashy looks make them more vulnerable to predators. Hint: it’s all about the chemistry. References: https://sites.google.com/view/sexual-…
Paleoanthropologist Answers Caveman Questions From Twitter | Tech Support | WIRED
Paleoanthropologist Dr. Steven E. Churchill answers your questions about cavemen and early human evolution from Twitter. What happened to the Neanderthals? Is there a chance Big Foot is real? What did humans eat before the discovery of fire? Answers to these questions and many more await—it’s Caveman Support.
David Attenborough encounters the most DANGEROUS plant in the desert! 😲🌵 The Green Planet 🌱BBC
This Black Hole Could be Bigger Than The Universe
Black holes might create infinite universes while destroying time and space. Everything in existence could be black holes, all the way down. We might live inside a black hole that is inside a black hole, that is inside a black hole. But let’s start at the beginning and build a black hole out of air.
The incredible adventures of the Hera mission | Presenting Hera
Meet Hera, our very own asteroid detective. Together with two CubeSats – Milani the rock decoder and Juventas the radar visionary – Hera is off on an adventure to explore Didymos, a double asteroid system that is typical of the thousands that pose an impact risk to planet Earth. Suitable for kids and adults alike, […]
Scientists complete first-ever map of an entire fruit fly brain
For many heartbreaking diseases of the brain — dementia, Parkinson’s, Alzheimer’s and others — doctors can only treat the symptoms. Medical science does not have a cure. Why? Because it’s confounding to cure what we don’t understand, and the human brain, with its millions of neurons connected by a hundred trillion synapses, is almost hopelessly […]
Shells of Cosmic Time (ft. @AstroKatie)
This video is about the cosmic distance scale and how we see objects farther away in space (ie at higher red shift) farther back in time because light takes time to reach us. Thus we can see not only stars and galaxies, but also the primordial stars & proto-galaxies, and even the remnants of the […]
How Dogs Can Smell When You’re Stressed
Did you know that dogs can tell when you’re stressed out? But how do they know? Turns out they can smell it! Join Hank for a new episode of SciShow and learn all about it! Hosted by: Hank Green (he/him)
If all humans died, when would the last light go out?
If every human somehow simply disappeared from the face of the earth, how long would it be before the last artificial light source would go out? Randall Munroe is the author of the New York Times bestsellers What If? 2, How To, What If?, and Thing Explainer; the science question-and-answer blog What If?; and the […]
What if you tried to print Wikipedia?
If you had a printed version of the whole of Wikipedia, how many printers would you need in order to keep up with the changes made to the live version? Credits ******* Randall Munroe | Narrator Henry Reich | Writer & Director Lizah van der Aart | Illustration and Video Editing Ever Salazar | Chief […]
Ariane 6 first liftoff
Europe’s new rocket Ariane 6 powered Europe into space taking with it a varied selection of experiments, satellites, payload deployers and reentry demonstrations that represent thousands across Europe, from students to industry and experienced space actors. This inaugural flight, designated VA262, is a demonstration flight to show the capabilities and prowess of Ariane 6 in […]
New discovery! 51,200-year-old cave painting in Sulawesi, Indonesia
51,200 year old cave painting. Indonesia.
Oldest Cave Art Found in Sulawesi
A team of Griffith University archaeologists has shared in the discovery of what may be the world’s oldest known cave painting, dating back to at least 45,500 years ago. Uncovered in South Sulawesi during field research conducted with Indonesia’s leading archaeological research centre, Pusat Penelitian Arkeologi Nasional (ARKENAS), the cave painting consists of a figurative […]
How The Dinosaurs Actually Died
A ruthless murder was committed! Someone killed the dinosaurs and we have the murderer! Witnesses say that an Everest-sized asteroid hit Earth, devastated the planet and caused a mass extinction. A simple, fascinating and convincing explanation. Or… is it?