The Luray Caverns in northern Virginia are one of the most touristed cave systems in the world, drawing about a half a million people a year. They are adorned with striking rock formations of stalagmites, stalactites, and columns, all made from white calcium carbonate, red-toned iron oxide, and grey magnesium oxide. These permeate the limestone […]
Luray Caverns of northern Virginia Read More »
As per my usual holiday tradition, I wrote an historically themed Christmas carol! This one is to the tune of “I Saw Three Ships”, and it’s called “I saw three hominids”. I had been lacking a tune about prehistory! I saw three hominids come inNeanderthal, Den’snovianGenus Homo all are kinHurray for evolution I spoke with
“I Saw Three Hominids” Historical Christmas Carol Read More »
One of the joys about cutting-edge studies that merge scientific data with the discipline of history is the chance to answer questions that we never thought we’d be able to. This photo of Greenland’s ice sheet gets at the way that climate scientists are trying to understand one of the most transformative aspects of earth
Younger Dryas Cold Snap Read More »
This is a photo of The Cave of Hands in Argentina, which is about 10,000 years old. The crowding of the hands is reflective of the way that humans for a long time have formed large communities. What is fascinating is that many anthropologists think they know just how large these average societies were. And
Things very old and very new feature prominently in this newly-released image from the James Webb Space Telescope. Going by the catchy name “Cosmic Cliffs,” this is an edge of a section of a nebula (the Carina Nebula, to be exact, appearing in our southern hemisphere) known as NGC 3324, first identified by James Dunlop
See the tiny flat rock out in the distance, supported by two vertical slabs? They made up part of a dolmen in Ardeche, France. These particular dolmens were structures created 3,000 years ago by neolithic peoples. They are megalithic tombs (meaning pre-historic and made of rock) and were originally much larger — their purpose was
The Chauvet Caves in Ardeche, France, contain some of the oldest artwork made by Homo sapiens. 36,000 years ago, during one of the last ice ages, the people who adorned Chauvet did so with extreme sophistication. They really thought about how viewers would perceive their paintings in light of the curvature of the cave walls
The limestone rocks that form the bedrock of the Bois Païolive come from the Jurassic Period, 180 million years ago. Aeons of erosion created unusual rock outcroppings, which the French government back in 1934 declared to be an ecologically protected area. There is incredible biodiversity in the Païolive, but the most notable trees are the
The Robledo Mountains lie to the north of Las Cruces, New Mexico, and to the east of the Rio Grande continental rift. Much of the exposed rock is from about 280 million years ago (Paleozoic), and the geological footprint is obvious and amazing. You can see a slot canyon in most of these pictures, when
Between 1582 to 1589, the British occultists John Dee and Edward Kelly claimed to have received multiple messages from angels. Writing these transmissions up, they formed the basis of the Enochian magical system, which was re-discovered and popularized over 300 years later by Alistair Crowley, a controversial (and free-love promoting) spiritualist. Pictured here is a
An ancient bristlecone pine over 5,000 years old is the oldest living thing on earth (at least, as far as scientists could document in 2016). That means it was contemporary with the first urban civilization in Sumer! The tree grows in the White Mountains in California in the Inyo National Forest. The location of the
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The Tyrannosaurus Rex had arms so small that paleontologists debate whether they were merely evolutionary leftovers. But research by Sara Burch, one of the world’s few leading experts on dinosaur anatomical structure, suggests that these puny extensions still functioned – the T-Rex held their prey while using their colossal necks, jaws, and teeth to do
Big history post here (big history meaning all of history, not just human), about the fabulousness of how evolution works. This is about the ways bees created the colors we see on flowers. We know that bees are super-pollinators critical for much of earth’s plant life. And we observe how bees are drawn to sweet
Flower Color Evolution Read More »
Happy Indigenous People’s Day in the United States! And what could be more appropriate to acknowledge the holiday than the study published just this month in _Science_ that confirmed the dating of these fossilized footprints — the oldest we have of Homo sapiens on North American ground? Using two new different dating methods, geologists Jeffrey
Footprints of White Sands Re-evaluated as Oldest Human in North America Read More »
Here’s a giant ground sloth skeleton, unearthed from the modern state of Missouri. Sloths like this would have stood up to ten feet tall, which was typical of many of the enormous charismatic vertebrates that populated our planet up until the great megafaunal extinction which killed most of them off in the Late Pleistocene, about
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The origins of human history keeps getting pushed further back in time, as a recent analysis of a wooden structure in Africa dating back almost a half a million years demonstrates. For reference, anthropologists now date the emergence of homo sapiens to about 200,000 years ago (although some argue for 300,000). The wooden structure discovered
Zambia Archaeological Site Has Earliest Known Wooden Structure Read More »
Without even googling, I am certain that what you see here has been the subject of a multitude of (probably very expensive but one hopes well-executed) tattoos: this is the famous Dendera zodiac of about 50 BCE, one of the most complete star-charts from the Ancient world. What you can see on it is fantastic.
The Lechuguilla Cave in south-eastern New Mexico (you can see a photo of part of it in the first slide) is the second deepest in the US (at 1,604 feet), and it runs underground for 150 miles. Located in the Carlsbad Caverns National Park, the cave isn’t open to regular visitors because it includes an
On today’s history menu we have a special duo-treat: art, as well as a revised theory about women hunters in early human cultures. And both stories are bound in the spear-throwing devices known as “atlatls”. An atlatl (the name is in the Aztec language Nahuatl because the Spanish saw the Aztecs using it, but
These are the views of Chimney Top, a Tuscarora quartzite outcropping at the end of the North Fork Trail on the similarly named mountain in West Virginia. Pictures don’t do this place justice – besides the immensity of scale that my photographic skills couldn’t capture, its beauty was enhanced by the wind and the solitude.
Chimney Top on the North Fork Trail of West Virginia Read More »
