Can we blame Neanderthal-human sex for a million COVID deaths?

Can we blame Neanderthal-human sex for a million COVID deaths?

Ashley Cowie |
About 60,000 years ago, a human had a sexual encounter with a Neanderthal. Now, a genetic scientist has claimed that ...
Should an AI chatbot robot have rights? A now-suspended Google engineer thinks so

Should an AI chatbot robot have rights? A now-suspended Google engineer thinks so

Patrick Thomas |
Google suspended an engineer who contended that an artificial-intelligence chatbot the company developed had become sentient, telling him that he ...
Can the body exist without the brain? Is the human mind nothing more than a parasite?

Can the body exist without the brain? Is the human mind nothing more than a parasite?

Adam Frank |
Take a deep breath. Can you feel your lungs filling with air? Now look at your hand. Can you see ...
Should COVID sufferers avoid Paxlovid because of symptom rebound reports?

Should COVID sufferers avoid Paxlovid because of symptom rebound reports?

Henry Miller, Josh Bloom |
Paxlovid is an oral two-drug combination regimen that treats COVID-19. One drug is nirmatrelvir, an antiviral, while the second, ritonavir, ...
One in 500 men have an extra sex chromosome. What does that mean and what are the signs?

One in 500 men have an extra sex chromosome. What does that mean and what are the signs?

Ian Sample |
Twice as many men carry an extra sex chromosome as previously thought, according to researchers who called for more genetic ...
Digital children? Will AI create the offspring of the future?

Digital children? Will AI create the offspring of the future?

If you prick it, it will not bleed. If you tickle it, it will not laugh. And, perhaps most importantly, ...
Is melatonin a safe and risk-free sleep aid — as many doctors contend? Think twice

Is melatonin a safe and risk-free sleep aid — as many doctors contend? Think twice

Emma Wallenbrock |
Melatonin poisoning in kids is on the rise, according to the Centers for Disease Control and Prevention. From 2012 to ...
Evolving smaller humans? Scientists debate whether rising temperatures will cause our species to shrink

Evolving smaller humans? Scientists debate whether rising temperatures will cause our species to shrink

Paige Bennett |
Throughout history, species have evolved to adapt to their changing surroundings. Now, with skyrocketing carbon dioxide levels in the atmosphere ...
Robotic realism: For the first time, human skin engineered to grow on a robot’s finger

Robotic realism: For the first time, human skin engineered to grow on a robot’s finger

It's still a long way until human-like robots walk among us in our daily lives, but scientists from Japan are ...
New COVID Omicron variants become dominant strains in US, especially in South

New COVID Omicron variants become dominant strains in US, especially in South

Andrew Joseph |
The United States appears to be in the midst of another biological baton pass between Covid-19 variants. The Omicron lineage ...
Video: Are babies born with a moral compass?

Video: Are babies born with a moral compass?

Chris Melore |
Are people born with a sense of right and wrong? A new study finds young infants can already make moral ...
Book review: ‘The Rise and Reign of the Mammals’ is Steve Brusatte’s sweeping history of how mammals took over the world

Book review: ‘The Rise and Reign of the Mammals’ is Steve Brusatte’s sweeping history of how mammals took over the world

Carolyn Gramling |
[In] The Rise and Reign of the Mammals, paleontologist Steve Brusatte’s [recounts the] sweeping history of the animals that have, ...
Artificial sentience: How close are AI models to achieving consciousness?

Artificial sentience: How close are AI models to achieving consciousness?

Nitasha Tiku |
LaMDA, short for Language Model for Dialogue Applications, is Google’s system for building chatbots based on its most advanced large ...
‘Neurological roots of politics’: Are Democrat and Republican brains wired differently?

‘Neurological roots of politics’: Are Democrat and Republican brains wired differently?

Emerging research has begun investigating the neural underpinnings of the biological and psychological differences that drive political ideology, attitudes and ...
height and health

Is short better: Can height predict your risk for certain diseases?

Corrie Pelc |
Over the years, scientists have examined a person’s height as a non-modifiable risk factor for certain diseases. Past research shows ...
COVID risk genes: 1370 gene variants predispose people to severe virus and even death

COVID risk genes: 1370 gene variants predispose people to severe virus and even death

Researchers from the University of Sheffield and Stanford University in the US have discovered there are specific genetic signals in ...
Dinosaur takeover? How realistic is the science of cloning and gene editing in Jurassic World Dominion?

Dinosaur takeover? How realistic is the science of cloning and gene editing in Jurassic World Dominion?

Thomas Bacon |
The Jurassic Park franchise has never exactly been praised for its scientific accuracy. Even its core concept - the idea dinosaur DNA ...
How politics can impact health: ‘Stark partisan divide’ in premature death rates among Democrat and Republican voters

How politics can impact health: ‘Stark partisan divide’ in premature death rates among Democrat and Republican voters

Haider Warraich |
In an ideal world, public health would be independent of politics. Yet recent events in the U.S., such as the ...
Do dogs ponder the future? Here’s what we can learn from animal dreams

Do dogs ponder the future? Here’s what we can learn from animal dreams

David Pena-Guzman |
Other animals may not ponder deep, existential questions, but the fact that they dream proves that they possess formidable memories ...
Gene-editing injections: A new way to tweak epigenetic expression of genes to treat alcohol addiction

Gene-editing injections: A new way to tweak epigenetic expression of genes to treat alcohol addiction

Emily Mullin |
While gene editing relies on changing the DNA code itself, epigenetic editing involves dialing the expression of individual genes up ...
Is Singapore’s mosquito-borne dengue emergency a harbinger of climate change disruptions ahead?

Is Singapore’s mosquito-borne dengue emergency a harbinger of climate change disruptions ahead?

Heather Chen |
Singapore says it is facing a dengue “emergency” as it grapples with an outbreak of the seasonal disease that has ...
Crimes of the Future: David Cronenberg movie ‘imagines a world in which humans are evolving and mutating and growing new organs regularly’

Crimes of the Future: David Cronenberg movie ‘imagines a world in which humans are evolving and mutating and growing new organs regularly’

Lindsey Bahr |
Pain is a essentially a thing of the past for some in David Cronenberg’s “ Crimes of the Future,” a ...
How did ancient animals evolve to be so giant?

How did ancient animals evolve to be so giant?

Michael Dhar |
Prehistoric giants used to populate the Earth. These behemoths included mighty dinosaurs, airplane-size pterosaurs, massive crocodiles and snakes, and even ...
‘Dark personalities’: When are destructive traits like narcissism and psychopathy most likely to appear?

‘Dark personalities’: When are destructive traits like narcissism and psychopathy most likely to appear?

Theo Klimstra |
Stories about insufferable teenagers, selfish college students, or inconsiderate older adults have one thing in common: They attribute the presence ...
‘We just clicked’: Is there a chemical basis to ‘love at first sight’?

‘We just clicked’: Is there a chemical basis to ‘love at first sight’?

Amy McGorry |
Finding true love may actually be due to how well your body synch’s up with your partner, according to researchers ...
Antibiotics that kill gut bacteria can ravage athletes’ motivation and endurance

Antibiotics that kill gut bacteria can ravage athletes’ motivation and endurance

Jules Bernstein |
New research demonstrates that by killing essential gut bacteria, antibiotics ravage athletes’ motivation and endurance. The UC Riverside-led mouse study ...
Here’s how abortion pills mifepristone and misoprostol work

Here’s how abortion pills mifepristone and misoprostol work

Chris Baraniuk |
Today mifepristone is often used in combination with another drug, misoprostol, and together the pair are more than 95 percent ...