The city of Rome has been around for a long time. According to legend, it was founded over 2,700 years ago and became the most powerful city in the Western world. Volcanic materials are integral to many of the structures, both as building stone and a key ingredient to the remarkably durable Roman concrete. It is no coincidence that Rome is surrounded by volcanic features, some of which have produced cataclysmic eruptions over the past 500,000 years. Welcome to the Roman Magmatic Province.Rome it ...read more

Tens of thousands of years ago in prehistoric Eurasia, some daredevil made friends with a gray wolf. The millions of domesticated dogs we see today are all likely its descendants, and their enormous diversity masks a remarkable fact: Even after millennia of selective breeding, all of them, from the Chihuahua to the St. Bernard, remain members of the same species.Canis familiaris displays by far the most variation of any mammal, and it’s still evolving at a steady clip. The mutation rate is s ...read more

Our understanding of our ancestors gets pretty murky when you go far enough back in time. Still, scientists have discovered numerous tools associated with Homo erectus — widely regarded as a direct ancestor to modern humans — over the years. For example, researchers recently discovered tools in Kenya (associated possibly with Paranthropus or another precursor to the Homo genus) that may date back as far as 3 million years.But there's a difference between making a few tools when the opportuni ...read more

Vitamin B12 is an essential nutrient that plays an indispensable role in keeping the body healthy. Most people get enough B12 from animal-based foods in their diets without issue. Certain lifestyle factors or medical conditions, however, can cause vitamin B12 deficiency, resulting in serious health problems. For many B12-deficient individuals, adding extra B12 to the diet with supplements or fortified foods can easily correct the problem. But how much do you actually need and how does it impact ...read more

It’s a moment that virtually all cat owners either come to love or dread: when your feline pal jumps on your lap and begins the familiar ritual of flexing and pressing its paws into you, rhythmically kneading your body as though you were the world’s biggest ball of dough.Often, cats will purr while doing it, and maybe even drool a little or stare off into the middle distance, zoning out in that way that only cats can. If you’re lucky, it’s a momentary event and then they snuggle down for ...read more

Rafael Jiménez Medina learned how to hunt elusive Iberian moles in the fields of southern Spain in the 1980s, when he was a young PhD student in genetics at the University of Granada.A local hunter of the moles (Talpa occidentalis) taught him how to capture these solitary, aggressive and territorial animals. The moles dig subterranean galleries and labyrinths in the meadows of the Iberian Peninsula, especially those with soft soils rich in earthworms, their favorite food. Such activity can bene ...read more

In 2017, a paper in the American Journal of Physical Anthropology reported on a surprising genetic analysis. A person buried at the ancient Viking site of Birka, alongside weapons and other equipment befitting a male Viking warrior, had no Y chromosome. She was a biological woman.Archaeologists had read about such warriors in ancient poetry, but female fighters “have generally been dismissed as mythological phenomena,” the paper says.The Birka woman and other discoveries have challenged the ...read more

Shishaldin in Alaska is a remote volcano by any standard. Less than 200 people live within ~60 miles of the edifice in the middle of Unimak Island, you'd be hard pressed to find many people who have seen the picturesque stratovolcano with their own eyes. Yet, like many things that might seem distant and unimportant, eruptions at volcanoes like Shishaldin are well worth noticing and monitoring thanks to the paths we have created around our planet.Turns out that Shishaldin may have been more notic ...read more

Some 300,000 years ago, an early hunter dropped a 30-inch stick in wet mud, and there it stayed through the Last Ice Age, two world wars and the dawning of the internet. The literal stick-in-the-mud remained in excellent condition, considering the amount of time, although it suffered some fungal and root damage.A new study has unearthed the stick and determines that it was once used as a hunting weapon and thrown like a boomerang.Read More: Ancient Humans Mapped Out Hunting Device on BouldersAnc ...read more

When a Manhattan parking garage collapsed in April this year, rescuers were reluctant to stay in the damaged building, fearing further danger. So they used a combination of flying drones and a doglike walking robot to inspect the damage, look for survivors and make sure the site was safe for human rescuers to return.Despite the robot dog falling over onto its side while walking over a pile of rubble — a moment that became internet-famous — New York Mayor Eric Adams called the robots a succ ...read more