It was March 1827 and Ludwig van Beethoven was dying. As he lay in bed, wracked with abdominal pain and jaundiced, grieving friends and acquaintances came to visit. And some asked a favor: Could they clip a lock of his hair for remembrance? The parade of mourners continued after Beethoven’s death at age 56, even after doctors performed a gruesome craniotomy, looking at the folds in Beethoven’s brain and removing his ear bones in a vain attempt to understand why the revered composer lost his hearing. Within three days of Beethoven’s death, not a single strand of hair was left on his head. Ever since, a cottage industry has aimed to understand Beethoven’s illnesses and the cause of his death. Now, an analysis of strands of his hair has upended long held beliefs about his health. The report provides an explanation for his debilitating ailments and even his death, while raising new questions about his origins and hinting at a dark family secret.
What were Neanderthals really like—and why did they go extinct?
When limestone quarry workers in Germany’s Neander Valley discoveredfossilized bones in 1856, they thought they’d uncovered the remains of a bear. In fact, they’d stumbled upon something that would change history: evidence of an extinct species of ancient human predecessors who walked the Earth between at least 400,000 and 40,000 years ago. Researchers soon realized that they had already encountered these human relatives in earlier fossils that had been found, and misidentified, throughout the early 19th century. The discovery galvanized scientists eager to explore new theories of evolution, sparking a worldwide fossil hunt and tantalizing the public with the possibility of a mysterious sister species that once dominated Europe. Now known as Neanderthals—so named by geologist William King—Homo neanderthalensis are humans’ closest known relatives.
Note: This is a version of my personal newsletter, which I send out via Ghost, the open-source publishing platform. You can see other issues and sign up here.
Continue reading “DNA from Beethoven’s hair unlocks family secrets”









