It’s an all-too-familiar headline: Coral reefs are in crisis. Indeed, in the past 50 years, roughly half of Earth’s coral reefs have died. Coral ecosystems are among the most biodiverse and valuable places on Earth, supporting upward of 860,000 species and a great deal of human well-being—but warming waters are an existential threat. And nowhere are...

Daniel Dennett, who died in April at the age of 82, was a towering figure in the philosophy of mind. Known for his staunch physicalist stance, he argued that minds, like bodies, are the product of evolution. He believed that we are, in a sense, machines—but astoundingly complex ones, the result of millions of years of natural selection.Dennett wrote...

On a summer evening in 1959, as the sun dipped below the horizon of the Moscow skyline, Rudolf Zaripov was ensconced in a modest dormitory at Moscow State University. Zaripov had just defended his Ph.D. in physics at Rostov University in southern Russia, when he was sent to Moscow to program one of the country’s early mainframe computers and train a...

Combat in nature is often a matter of tooth and claw, fang and talon. But some creatures have devised devious and dramatic ways to weaponize their bodily fluids, expelling them in powerful streams for the purposes of attack or self-defense. Researcher Elio Challita became fascinated by fluid ejections in nature when he began studying an insect called...

On Aug. 19, 2021, a humpback whale named Twain whupped back. Specifically, Twain made a series of humpback whale calls known as “whups” in response to playback recordings of whups from a boat of researchers off the coast of Alaska. The whale and the playback exchanged calls 36 times.On the boat was naturalist Fred Sharpe of the Alaska Whale Foundation,...

1 Gravity is fun!The word gravity, derived by Newton from the Latin gravitas, conveys both weight and deadly seriousness. But gravity can be the opposite of that. As I researched my book during the sleep-deprived days of the pandemic, flashbacks to the role gravity had played in some of my most memorable moments kept popping into my mind: swinging in...