Costica Bradatan writes: Have you noticed how, when crossing a busy road, you feel a sudden urge to speed up and melt into the crowd? Whether you are in Rio de Janeiro or Bangkok, New Delhi or New York City, your animal instinct tells you that it is safer to venture as part of a herd than on your own. Fear brings us closer together. The evidence is not just anecdotal. When we are herding, neuroimaging experiments show increased activation…
The New York Times reports: Jay Miles has lived his 52 years without marriage or children, which has suited his creative ambitions as a videographer in Connecticut and, he said, his mix of “independence and stubbornness.” But he worries about who will take care of him as he gets older. Donna Selman, a 55-year old college professor in Illinois, is mostly grateful to be single, she said, because her mother and aunts never had the financial and emotional autonomy that…
Mercedes Valmisa writes: What if I told you that there’s no such thing as an individual action? That every time you eat, walk up the stairs or read a book, you are not the sole agent behind what you are doing, but are engaged in a process of co-creation – as much acted-upon as acting? To grasp what I mean here, imagine riding a horse. While I can effortlessly distinguish between myself and a horse, I’m aware that neither I…
Gene Tracy writes: I have a memory, a vivid one, of watching my elderly grandfather wave goodbye to me from the steps of a hospital. This is almost certainly the memory of a dream. In my parent’s photo album of the time, we have snapshots of the extended family – aunts, uncles, and cousins who had all travelled to our upstate New York farm to celebrate my grandparents’ 50th wedding anniversary. I am in some of the photos along with…
Barbara J King writes: Human exceptionalism takes many forms but most share an assumption that our species displays singularly complex ways of being, thinking and feeling. On this perspective, other animals’ capacities are inferior, and so other animals’ lives are also seen as inferior. It’s only a myth, though, that other-than-human animals inevitably live moment to moment. Many mammals and birds remember and learn from past experiences, and anticipate with joy or fear what may be coming next. Recognition of…
Nina Martyris writes: The watch never left his side. It was the first thing Gandhi reached for when he rose each morning at 4 a.m., and the last thing he checked before going to bed, often past midnight. He consulted it frequently through the day so as never to be late for an appointment. And, at that final moment, when three bullets from an assassin’s Beretta knocked him over, his 78-year-old body slumped to the ground, and the watch also…
Philip Ball writes: “There is a black hole at the heart of biology,” Nick Lane writes at the start of his 2015 book The Vital Question. “Bluntly put, we do not know why life is the way it is.” It takes some chutzpah to lay down the gauntlet to the life sciences so starkly—to suggest they are engaged more in documenting life than in explaining it. Lane, a professor of evolutionary biochemistry at University College London, doesn’t seem the kind…
William MacAskill writes: Humanity, today, is in its adolescence. Most of a teenager’s life is still ahead of them, and their decisions can have lifelong effects. Similarly, most of humanity’s life lies ahead – an estimated 118 billion people have already lived, but vastly more people, perhaps thousands or even millions of times that number, are yet to be born. And some of the decisions we make this century will impact the entire course of humanity’s future. Contemporary society does…
The New York Times reports: In June, 100 fruit fly scientists gathered on the Greek island of Crete for their biennial meeting. Among them was Cassandra Extavour, a Canadian geneticist at Harvard University. Her lab works with fruit flies to study evolution and development — “evo devo.” Most often, such scientists choose as their “model organism” the species Drosophila melanogaster — a winged workhorse that has served as an insect collaborator on at least a few Nobel Prizes in physiology…
The Observer reports: At the centre of the Earth, a giant sphere of solid iron is slowly swelling. This is the inner core and scientists have recently uncovered intriguing evidence that suggests its birth half a billion years ago may have played a key role in the evolution of life on Earth. At that time, our planet’s magnetic field was faltering – and that would have had critical consequences, they argue. Normally this field protects life on the surface by…
Kate Kirkpatrick and Sonia Kruks write: Old age is not exactly a time of life that most of us welcome, although globally speaking it is a privilege to reach it. In Western societies, the shocked realisation that we are growing old often fills us with alarm and even terror. As Simone de Beauvoir writes in her magisterial study of the topic, La vieillesse (1970) – translated in the UK as Old Age, and in the US as The Coming of…
Renée A Duckworth writes: In certain places around the world – in the Badlands near Drumheller in Alberta, Canada, in the Geulhemmergroeve tunnels in the Netherlands, or in the Hell Creek formation in eastern Montana – you can touch a thin line of rock, and know you are touching the most famous mass extinction event on Earth. This Cretaceous-Paleogene (K-Pg) boundary layer is a seam of clay found all over the world, enriched with iridium – an element that appears…
Anelise Chen writes: When the marine biologist Rachel Carson was a young girl, she discovered a fossilized shell while hiking around her family’s hillside property in Springdale, Pennsylvania. Those who knew her then would later contend that this relic sparked such intense reverie in her that she instantly felt a tug toward the sea. What was this ancient creature, and what was the world it had known? Though Carson had never seen the sea herself, she threw herself into its…
Nature reports: Chemists say they have solved a crucial problem in a theory of life’s beginnings, by demonstrating that RNA molecules can link short chains of amino acids together. The findings, published on 11 May in Nature, support a variation on the ‘RNA world’ hypothesis, which proposes that before the evolution of DNA and the proteins it encodes, the first organisms were based on strands of RNA, a molecule that can both store genetic information — as sequences of the…
Nicholas Cannariato writes: The nature of time. Black holes. Ancient philosophers. The struggle for democracy. Climate change. Buddhist philosophy. In his new collection of essays and articles, Carlo Rovelli, one of the world’s most renowned physicists, broadens his writing to include questions of politics, justice and how we live now. “I look at myself as much more than a physicist,” he said in an interview at his home in London, Ontario, on a cold, calm day in February. The new…
Inside Climate News reports: The highest court in one of India’s 28 states ruled last month that “Mother Nature” has the same legal status as a human being, which includes “all corresponding rights, duties and liabilities of a living person.” The decision from Madras High Court, located in the southeastern state of Tamil Nadu, also said that the natural environment is part of the human right to life, and that humans have an environmental duty to future generations. “The past…