When does the story of Alice actually intersect with rabbits? In the case of evolutionary history — and a failed attempt at biological warfare in Australia.I can think of nothing that demonstrates the process of biological evolution more clearly than viruses. Because their genomes are so small, their genetic mutation rates produce a rapid effect. […]
“The Red Queen Hypothesis” in European Rabbits Read More »
This picture is neither a coffee stain nor a bad tattoo, but rather a fossil from one of the most important places that evolutionary scientists study the emergence of complex life: the fossils of Burgess Shale in British Columbia.Burgess Shale fossils date from the period of the Cambrian Explosion (525-505 million years ago), when “all
Burgess Shale Fossil in British Columbia Read More »
Evolution brings a sense of humility like nothing else can. Ladies and gentlemen, may I introduce you to our ancestors? Featured on the first slide is “Kimberella,” probably the oldest of the “protostome” fossils, dating 255 million years ago – from before the pre-Cambrian explosion.“Aha,” you might be thinking. “That doesn’t look like even the
Kimberella – the Oldest Protostome Fossil Read More »
“The difference in mind between man and the higher animals, great as it is, is one of degree and not of kind,” wrote Charles Darwin, in his famous _The Descent of Man_ in 1871. And evolutionary biologists still agree. So then what makes the mental capacities of Homo Sapiens and other hominid apes so different?Two
Brain Size in Homo Sapiens Read More »
Wanna know the difference between this kid and a chimpanzee? So do evolutionary biologists . . . And with the use of genetic studies, scientists recently have figured out two additional ways that we Homo Sapiens differ from our common primate chimp ancestors from six to eight million years ago. They have to do with
Genetic Differences Between Children and Chimpanzee’s Read More »
By the Early Modern period in England, many people associated witches with their accompanying animals called “familars.” At the bottom of this woodcut you can see “Boy” (also “Boye”) the dog and alleged familiar of the military leader Prince Rupert of the Rhine, who died with his master in battle in 1644.The familiars of 17th-century
Witches and their Familiars Read More »
This is St. George Jackson Mivart, and he ruffled the feathers of proponents of every side of the evolution debates of the 19th century. The second slide is a fossil of a ancient species called Archaeopteryx, and its ruffled feathers were at the center of evolutionary debates of the 19th century.Mivart was raised Anglican but
St. George Jackson Mivart and the Archaeopteryx Read More »
Meet Julia Barlow Platt (1857-1935), who in her 70s was elected as the first female mayor of Pacific Grove, California. She spent her late years galvanizing efforts to create a nature preserve on Monterey Bay, which is still one of the most lovely areas on California’s northern coast. Behind these achievements, however, is a story
Julia Barlow Platt, Embryotic Cells, and California Politics Read More »
A few days ago I did a post featuring a fossil of a creature called Archaeopteryx, famed for having traits both bird- and dinosaur- like: it filled in a gap in the evolutionary record. The photo you see here is of the paleo-biologist Neil Shubin with a model of a creature whose fossils he found.
Neil Shubin and the Tiktaalik Read More »
Historians are frequently enchanted by things discarded as useless by the general public. But I think anyone interested in evolution would find the study of non-gene coding DNA fascinating, including the scientist featured here. This is Susumu Ohno, one of the United States’ foremost geneticists and evolutionary biologists, and he came up with the term
Susumu Ohno’s “Junk DNA” Read More »
The global situation right now is dominated by discussion of COVID-19, as well as the Herculean attempts to create a vaccine for the disease. And as reports of the Phase III trials start to come in, we can look at this photo — a scientist’s laboratory from the early 20th century, cluttered and filthy. Rotting
Thomas Morgan and Gene Studies Read More »
Medieval violent bunnies onstage for this post, which makes me laugh no matter what.We do not expect these furry (mostly) vegetarian creatures to be shown inciting bloodshed, or picking on poor unarmored monks (slide two), or mauling naked men when they are sleeping (slide three), or viciously destroying King Arthur’s entourage (the Rabbit of Caerbannog,
Medieval Violent Bunnies and Knighthood Read More »
You are looking at vistas along the Long Pond Trail, an isolated and somewhat arduous trek through some of the loveliest mountainous paths that make up the Green Ridge State Forest in western Maryland. Like so much of the Atlantic seaboard states, the forests of the Green Ridge were all but eliminated around the late
Long Pond Trail Vistas in Maryland Read More »
This is ink drawing by the Medieval Japanese master artist Sesson Shūkei dates from around 1570 and represents my favorite elements of this type of art. Called “Gibbons in a Landscape,” it shows the animals trying to take hold of the moon’s reflection in the water. You can see a closeup in the second slide
Japanese Ink Drawing “Gibbons in a Landscape” Read More »
For some reason I thought Virginia’s First Landing State Park evoked a _The Pirates of the Caribbean_ vibe. With its dense canopy of bald Cyprus trees emerging from the swamps, the forest’s beauty was accompanied with the sounds of frogs, birds, and cicadas.First Landing, like so many other spots of preserved forest in this country,
Virginia’s First Landing State Park Read More »
A lovely chapter in human history was undertaken with the formation and development of south-eastern Virginia’s Back Bay Natinal Wildlife Refuge. Formed in 1938 to provide a safe migration zone for migratory bird species, the Back Bay NWR was doubled in size to include over 9,000 acres in the 1980’s as the Virginia Beach area
Virginia’s Back Bay National Wildlife Refuge Read More »
Behold an example of a fabled Griffin claw, said to neutralize poisons and once collected as prized objects by Medieval kings. The upper image is of a purported Griffin claw, with a silver band inscribed with the Latin: “GRYPHI UNGUIS DIVO CUTHBERTO DUNELMENSI SACER” (“the claw of a Griffin sacred to the blessed Cuthbert of
Medieval Griffin Claw Read More »
What are these wee beasties adorning this 11th-century Old English manuscript? Not bulls-with-fringe legs, but spiders! I love that the artist makes their bodies more like mammalian monsters — but if you count their legs, you do see that at least the artist got the number correct. In Old English, many kinds of crawling things
Spiders in Old English Read More »
Here you see the Spider, one of the most important geoglyphs that form the Nazca Lines amid the arid coastal plain of southern Peru. The Nazca peoples constructed this and other shapes and lines between 500 BCE and 500 CE, in one of the world’s driest regions. Today the Nazca Lines are a UNESCO World
The Spider of the Nazca Lines Read More »
Chariot-racing was one of the most popular sporting events in Ancient Rome. Throngs of people (up to 250,000 in Rome’s Circus Maximus) would crowd the stands, supporting their favorite teams (marked by the colors blue, green, red, and white) with fervorous shouting and cheers. The charioteers were much admired, and although some drivers could make
