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The largest mammal in North America is also one of its longest-standing residents. Its ancestors arrived on the continent hundreds of thousands of years ago, and their descendants have lived there ever since – that is, until humans nearly caused them to disappear entirely. The iconic animals we were so close to driving extinct? Bison. […]

Today, the largest land animal in North America is the bison, which can clock in at nearly 4 meters (13 feet) in length, and weigh as much as two grand pianos. But as much as we love bison, they pale in comparison to the biggest terrestrial animal ever to have roamed the continent: Alamosaurus. The […]

This week on Break It Down: 3I/ATLAS is a 10 billion-year-old time capsule, a world-first fossil captures the moment a rock hyrax dragged its butt 126,000 years ago, a living person received a pig liver transplant for the first time, the “oldest human habit” might not be what it seems, a rare gynandromorph spider is […]

Comet 3I/ATLAS is the third interstellar visitor and continues to be a treasure trove of information about the condition of its formation. As it speeds through the Solar System, telescopes have been pointed at it, revealing new tidbits about this fascinating space rock. Just recently, we have learned about the unusual ratio of nickel to […]

Marking a defining moment in the “historic shift” away from fossil fuels, renewable energy surpassed coal to become the world’s largest source of electricity in the first half of 2025. The latest report from Ember shows that solar and wind power grew faster than global electricity demand, with solar alone covering 83 percent of the […]

In 2021, the Saint Louis Zoo in Missouri lost a very special resident. She was a snake, but not just any snake. You see, this ball python was the oldest snake in the world in zoo care. She lived to a staggering 62 years old, but not before doing something remarkable just a year before […]

Something may be stirring in the world’s largest oceanic current. New research suggests that this vast conveyor belt of cold water around the South Pole could shift its location over the coming centuries, if not millennia, potentially reshaping the planet’s climate and ecosystems. The Antarctic Circumpolar Current (ACC) is a vast current of cold seawater […]

When we look at maps of the world, landmasses seem to be well distributed. Sure, there is more water than landmasses, but they are all spread out. Well, not really. If you grab a globe and turn it towards the Pacific Ocean, you can angle it in a way that the only thing you can […]

While most of the world measures temperatures in Celsius and the United States clings to Fahrenheit as if its hands were frozen, scientists usually prefer Kelvin. A degree Kelvin marks the same difference in temperature as a degree Celsius, but the starting point is 273.15 degrees lower. If you think that sounds like an odd […]

Astronomers have broken two records in one thanks to an incredible serendipitous alignment of cosmic objects. It’s the highest resolution detection of a gravitationally lensed radio arc, and within it, a small kink indicating the presence of a small gravitational mass – the smallest ever seen, creating this effect at cosmic distances. The rest of […]

How do you change a medical treatment protocol that’s been around for 200 years? It’s not easy to step outside the status quo; but if you do, you might just discover that with the right combination of technology and expertise, you can forge a new path – one that has the potential to improve outcomes […]

Golden moles are pretty special, rarely seen, and occasionally even rediscovered. They also have the curious characteristic of being the only known mammal with iridescent fur. At least, they were. Anecdotal evidence has suggested that other mammals might share such traits and now a new study has revealed that the golden mole is not, in […]

Creative experiences can delay brain aging, according to new data from 1,240 people. Across a range of different creative pursuits, scientists discovered that the more people engaged in their hobbies, and the more skilled they became, the better the impact on their brain age. Whether it’s learning a musical instrument or mastering a new video […]

After decades of ultra-reliable behavior, the pulsar PSR J1713+0747 suddenly changed its output in April 2021. Astronomers have documented the change and subsequent modifications, and offered some tentative explanations for the cause. Nevertheless, they admit the events indicate something deep about pulsars we don’t yet understand. When supernovae leave a neutron star behind, it spins […]

Now, good sleep is important – that’s indisputable. But as the issues above make clear, what counts as “good” is really a mixture of myriad different factors. So, in an effort to de-oversimplify the issue, a new study takes a more holistic approach to quantifying sleep – and has found that, when it comes to […]

A robot has just set off on its mission to complete the first-ever global circumnavigation with an autonomous underwater vehicle. The self-gliding sub launched on the morning of October 10 from the docks of the Woods Hole Oceanographic Institution in Massachusetts, where it will go on to ride the Gulf Stream across the Atlantic Ocean. […]

A 71-year-old man in China became the first ever living recipient of a liver transplant from a genetically modified pig, as detailed in a new case report. The surgery was initially deemed successful, but complications arose, and the patient died on day 171 post-surgery. The team behind the procedure say it’s evidence that pig liver […]

One of the most complete sea monsters on record had been discovered along the UK’s Jurassic Coast, being perhaps the world’s most complete reptile fossil dating back to the Pliensbachian period. The rare and impressive specimen offers unprecedented insight into a period of time we know little about, and bridges a gap in our understanding […]

The acting director of the US Centers for Disease Control and Prevention (CDC) has endorsed comments made by President Donald Trump, calling on parents to request that the measles, mumps, and rubella (MMR) vaccines be given to their kids as three separate shots, known as monovalent vaccines. The CDC, guided by the Advisory Committee on […]

Finding new species is a tricky business, especially when it comes to areas off the beaten track. On the border between Peru and Brazil, a case of mistaken identity has been rectified within a very snazzy-looking group of poison dart frogs.  The rest of this article is behind a paywall. Please sign in or subscribe […]