The Salmon Canon and the Levitating Frog: And Other Serious Discoveries of Silly Science is as fun to read as the title suggests. She presents a lot of fascinating information, including the novel experiments curious scientists set up to discover intriguing aspects of our natural world. The book highlights basic science, which is “driven by curiosity and the observations of nature, not by immediate demands for application.”
The author says, “every question, no matter how seemingly silly, is fueled by a profound sense of wonder and a hunger to understand. It’s not just about idle musing; it’s about piecing together the colossal jigsaw puzzle that is the universe, one tiny piece at a time.”
Here are some highlights of the research findings~
Jake Socha and his team discovered how some snakes in Southeast Asia fly: “By contorting their body into a concave shape, they were essentially turning their entire body into a wing. . . . Not only were the snakes performing a behavior that seemed impossible, but they were also doing it in a completely different way than had been documented in any other flier or glider.”
One of the most intriguing stories in the book is that of Patty Brennan, who studies duck reproduction. Ninety-seven percent of male birds don’t have penises. Brennan suggests that over millions of years of evolution, “female birds have chosen less coercive males with smaller penises to the point where penises disappeared. Without a penis, it is practically impossible for a male to copulate without the female’s consent.”
Not so with ducks. Male ducks are notorious for forcing copulation on females. In fact, they have a “lengthy, corkscrew-shaped phallus.”
The vaginas of female ducks are “filled with labyrinthine elaborations.” What’s interesting is that “when the female is penetrated by a male she didn’t choose, she maintains her inner maze to thwart reproduction. But when she finds the right guy, she’s able to open a clear pathway for fertilization.”
For 300 million years, cockroaches have been “marvels of evolution.” Scientist Kaushik Jayaram was interested in how they “can get into just about any tiny space—a roach is typically over half an inch tall but can squeeze into gaps just a tenth of an inch wide.”
He learned that the shiny plates of the cockroach exoskeleton “are like overlapping shingles—they can slide over each other, allowing for extraordinary body contortions. This clever design enables cockroaches to flatten and wooden out under pressure, a nifty trick when you need to fit into the narrowest of escape routes or . . . withstand being squashed.”
A physicist named Andre Konstantin Geim at the High Field Magnetic Laboratory provided the levitating frog of the title.
“In a move he would later describe as ‘somewhat unprofessional,’ he cranked up the electromagnet to its maximum power and poured a bottle of water into the core of the very expensive apparatus. That’s when it happened—droplets of water began to levitate inside the machine. [They tested other objects like a piece of pizza.] Next, the team decided to experiment with a living being. They quietly borrowed a small frog from the biology department, cranked up the magnets, and placed the frog inside the machine. And there it was: the first ever levitating frog. Not only was the experiment a success, but the frog appeared quite comfortable floating in midair.”
The author has a wonderful storytelling style:
“It was a late night alone in the lab for Peter Fong of Gettysburg College when he accidentally knocked a bottle of Prozac into an aquarium of clams. As the pills sank to the bottom of the tank, along with his heart, he noticed something strange: the clams started spawning, releasing eggs and sperm into the water at startling rates.”
She notes that in commercial clam farming, using Prozac helps the farmers create synchronous spawning, thus clam “farmers can increase their yield and raise a uniform crop.”
Because many clams and other bivalves are endangered, “Fong’s good (mis)fortune [may give] us the key to preventing their extinction.”
The author is also quick to point out the ethical dilemmas of using animals in basic research. Several scientists contributed to the discovery of incredible clotting factors in horseshoe crab blood, leading to a test that can “rapidly indicate the presence of contaminants in medical solutions by forming distinctive clots within just a few hours. . . . About 450,000 horseshoe crabs are harvested for this purpose each year [presenting] a complex ethical and environmental dilemma. Thankfully, scientists have been hard at work to find an animal-friendly alternative to horseshoe crab blood, and the research looks very promising.”
The book concludes with a chapter on exploring political attacks on basic science. Patty Brennan, the scientist studying duck penises came under intense negative scrutiny.
“Critics labeled her as sick and a deviant for her focus on animal genitalia. Brennan’s own reflection of this time tells of the profound psychological toll these criticisms can take. Mortified, she feared being perceived as a fraud even by her professional community. In her words, she wanted to crawl under her desk and never come out again. Her experience is evidence of how vulnerable one becomes when publicly pushing the boundaries of knowledge.”