検索キーワード： 生物科学

Scratch beneath the surface of a coffee bean, a red pepper flake, a poppy seed, a mold spore, a foxglove leaf, a magic-mushroom cap, a marijuana bud, or an apple seed, and we find a bevy of strange chemicals. We use these to greet our days (caffeine), titillate our tongues (capsaicin), recover from surgery (opioids), cure infections (penicillin), mend our hearts (digoxin), bend our minds (psilocybin), calm our nerves (CBD), and even kill our enemies (cyanide). But why do plants and fungi produce such chemicals? And how did we come to use and abuse some of them?

For decades the practice of manifestation has been widely dismissed as self-involved, materialistic pseudoscience. But as neuroscientist and recognized compassion leader Dr. James Doty reveals, manifestation introduces us to different possibilities, and it lays the groundwork for a kinder, better world. Doty grounds us in the practices that change our brain structures: attention, meditation, visualization, and compassion. This mind magic allows us to move through the world in ways that help us see clearly.

Aging and longevity are something humans have been thinking about throughout our history. Life expectancies worldwide are increasing and people are living longer than ever before. This raises the question, how do you maintain a higher quality of life even when living longer? Furthermore, how long could you live if you were to follow all the latest science about longevity and slowing down aging?

At the heart of Israel Rosenfield and Edward Ziff's inquiry is the nature of brain function. The sensory world is disordered and chaotic. There are no labels for tables, chairs, or airplanes, and indeed there are no colors, sounds, or smells, only photons, airwaves, odorant molecules, and so on, which are unlabeled and impossible to "know." To make sense of this chaos, the brain must simplify the sensory inputs by creating, or inventing, the colors, sounds, smells, forms, and faces that are perceived in consciousness, which become a proxy for the chaotic world in which we live.

The natural world teems with remarkable conversations, many beyond human hearing range. Scientists are using groundbreaking digital technologies to uncover these astonishing sounds, revealing vibrant communication among our fellow creatures across the Tree of Life. At once meditative and scientific, The Sounds of Life shares fascinating and surprising stories of nonhuman sound, interweaving insights from technological innovation and traditional knowledge.

Picture yourself in the Cretaceous period. It’s a sunny afternoon in the Hell Creek of ancient Montana 66 million years ago. A Triceratops horridus ambles along the edge of the forest. In a matter of hours, everything here will be wiped away. Lush verdure will be replaced with fire. Tyrannosaurus rex will be toppled from their throne, along with every other species of non-avian dinosaur no matter their size, diet, or disposition. They just don’t know it yet.

Did you know women walk more, eat less, socialize more, meet more men, dance more, and flirt more when they're ovulating? Or that PMS may have evolved to get rid of boyfriends with unfit sperm? Behind the "fickle" differences in what women find sexy about men, or what they like to wear, there's a hidden adaptive intelligence shaped over eons. Rather than making women irrational - as the conventional and irredeemably sexist wisdom goes - the female hormonal cycle has been exquisitely fine-tuned to give women the advantages they needed to succeed in our ancestral environments, and perhaps also today.

Humans have kept honey bees in hives for millennia, yet only in recent decades have biologists begun to investigate how these industrious insects live in the wild. The Lives of Bees is Thomas Seeley’s captivating story of what scientists are learning about the behavior, social life, and survival strategies of honey bees living outside the beekeeper’s hive - and how wild honey bees may hold the key to reversing the alarming die-off of the planet’s managed honey bee populations.

Brown bears lead deeply cyclical lives. They need to gain sometimes hundreds of pounds during the warmer months to prepare for winter hibernation, a lifestyle that brings them into frequent contact with many other species’ cycles. In this episode, we meander through the Alaska peninsula with a bear and her cubs as she teaches them to hunt salmon at the falls, dig for clams along the coastal mudflats, and use the regional rubbing tree.

In The Power of Neuroplasticity, Shad Helmstetter, PhD, presents the scientific discovery that the thoughts we think physically rewire and reshape our brains and change our lives. Dr. Helmstetter shows how to use the latest research from the field of neuroscience to wire your brain to change attitudes, overcome negativity, improve health and fitness, reach personal goals, increase mental sharpness and clarity, improve usable IQ, super-charge your thinking, and reshape your life, all with neuroscience on your side.

Biology is undergoing a quiet but profound transformation. Several aspects of the standard picture of how life works—the idea of the genome as a blueprint, of genes as instructions for building an organism, of proteins as precisely tailored molecular machines, of cells as entities with fixed identities, and more—have been exposed as incomplete, misleading, or wrong. In How Life Works, Philip Ball explores the new biology, revealing life to be a far richer, more ingenious affair than we had guessed.

In his beloved book The Hidden Life of Trees, Peter Wohlleben revealed astonishing discoveries about the social networks of trees and how they communicate. Now, in The Power of Trees, he turns to their future, with a searing critique of forestry management, tree planting, and the exploitation of old growth forests. At the heart of The Power of Trees lies Wohlleben’s passionate plea: that our survival is dependent on trusting ancient forests, and allowing them to thrive.

As Indigenous scientist and author of Braiding Sweetgrass Robin Wall Kimmerer harvests serviceberries alongside the birds, she considers the ethic of reciprocity that lies at the heart of the gift economy. How, she asks, can we learn from Indigenous wisdom and the plant world to reimagine what we value most? Our economy is rooted in scarcity, competition, and the hoarding of resources, and we have surrendered our values to a system that actively harms what we love. Meanwhile, the serviceberry’s relationship with the natural world is an embodiment of reciprocity.

The sun sinks over the Rio Grande, the mountains around it glow orange, and the world slows down. The Mexican free-tailed bats inside the Jornada Cave are just starting to stretch and murmur. In this episode, we visit the nursery where all the baby bats stay together, and we accompany a new mother as she journeys into the sky with the rest of her crew for a night of hunting bugs via echolocation.

Elephants are the largest land animals in the world. They are also intensely social and have advanced long-term memories. In this episode, a parade of Asian elephants makes its way through the Sri Lankan forest to a lake for drinks and mud baths, stopping periodically for group naps. The female leading the parade uses infrasonic rumbles—inaudible to humans, but traveling as far as two miles along the surface of the Earth as seismic waves—to invite friends and family around the forest to join her at the reservoir.

Fennec foxes’ ears can be up to half as long as their bodies. They use them to track movement across the Sahara Desert, including under the sand. In this episode, we follow a fox as he meanders home to his family through the sand dunes as they slowly shift with the wind.

Robert Sapolsky’s Behave, his now classic account of why humans do good and why they do bad, pointed toward an unsettling conclusion: We may not grasp the precise marriage of nature and nurture that creates the physics and chemistry at the base of human behavior, but that doesn’t mean it doesn’t exist. Now, in Determined, Sapolsky takes his argument all the way, mounting a brilliant (and in his inimitable way, delightful) full-frontal assault on the pleasant fantasy that there is some separate self telling our biology what to do.

Antonio Damasio, el mayor divulgador científico, analiza qué son los sentimientos y cuál es su papel en el ciclo de la vida. "Este libro trata de un interés y de una idea. Hace mucho tiempo que me intriga el afecto humano (el mundo de las emociones y de los sentimientos) y he pasado muchos años investigándolo: por qué y cómo nos emocionamos, sentimos, usamos los sentimientos para construir nuestro yo; cómo los sentimientos ayudan a nuestras mejores intenciones o las socavan; por qué y cómo el cerebro interactúa con el cuerpo para sostener dichas funciones.

Targeted to beginners and beyond, National Geographic's fun, inspiring guide to the art, craft, and science of bird-watching combines practical know-how and expert knowledge. Browsable and bursting with helpful illustrations and photographs, Birding Basics offers new ideas for when, where, and how to get to know the birds in your world.

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