Biology

Fungi & Brownfield Remediation

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Researcher Danielle Stevenson digs up California buckwheat grown at a brownfield site in Los Angeles.

Researcher Danielle Stevenson digs up California buckwheat grown at a brownfield site in Los Angeles. PATRICK T. FALLON / AFP VIA GETTY IMAGES

Corporate irresponsibility abounds, so brownfield sites are abundant. And fungi sometimes offer relevant remediation options. Thanks to Richard Schiffman and Yale e360 for this interview on a topic we have cared about since launching this platform, and which we believe will be of increasing importance in our future:

Turning Brownfields to Blooming Meadows, With the Help of Fungi

California buckwheat that has absorbed lead at a contaminated site in Los Angeles.

California buckwheat that has absorbed lead at a contaminated site in Los Angeles. PATRICK T. FALLON / AFP VIA GETTY IMAGES

Toxicologist Danielle Stevenson cleans up carbon-based pollutants and heavy metals from contaminated sites using fungi and plants. She’s also training environmental justice and tribal communities in using these methods so they can remediate toxic sites on their own.

The United States is dotted with up to a million brownfields — industrial and commercial properties polluted with hazardous substances. Continue reading →

The Light Eaters, Reviewed As An Anthropology Of Science

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An illustration of a plant with central nervous system like tendrils coming out of the stem.We linked to this conversation with the author of The Light Eaters, and now see we can share this book excerpt published in The Atlantic:

On a freezing day in December 2021, I arrived in Madison, Wisconsin, to visit Simon Gilroy’s lab. In one room of the lab sat a flat of young tobacco and Arabidopsis plants, each imbued with fluorescent proteins derived from jellyfish.

The excerpt came to our attention reading this book review by The New Yorker’s Rachel Riederer which, like the book excerpt, makes you wonder what became of David Rhoades (we searched and could find no trail to follow, so it remains a mystery to us). It reveals the book to be more of an anthropological study of science than just a primer on plant communication:

Illustration of a face made from plants in a fieldA New Book About Plant Intelligence Highlights the Messiness of Scientific Change

In “The Light Eaters,” by Zoë Schlanger, the field of botany itself functions as a character—one in the process of undergoing a potentially radical transformation.

During the nineteen-seventies and eighties, a researcher at the University of Washington started noticing something strange in the college’s experimental forest. Continue reading →

Nature’s Sobering Scenes Challenge Our Simple Wonder

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Matt Williams

James Gorman‘s nature and scientific work has appeared so many times in our pages that we can say his style of writing mixes sobriety and wonderment. This essay’s message– birdwatching is not all rainbows and unicorns–is an amplification of that mixture:

From sibling murder to snakes for breakfast, birds’ lives may be darker than you imagine.

I saw a couple of crows dining on roadkill the other day as I was driving by and wondered, Does this count as bird-watching?

I think it should. I know that birding is having a moment. It was something you could do outside without catching Covid at the height of the pandemic. Continue reading →

Culling Questions

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Because invasive species are among the main drivers of extinction today, conservationists have made efforts to cull mice in favor of albatrosses, rats in favor of puffins, and pythons in favor of bobcats. Illustration by Javier Jaén; Source photographs from Getty

Invasive species have received plenty of attention in our pages in the years since we first shared on this topic. Creative approaches to solving the problem abound. Elizabeth Kolbert reviews two books that take up the moral implications:

Cull of the Wild coverShould We Kill Some Wild Creatures to Protect Others?

Where humans have tilted the game in favor of one species, some believe we should cull predators to save their prey. Others think it’s a mistake to pick sides.

The northern spotted owl is about a foot and a half high, with very dark eyes, a greenish beak, and a rim of feathers, called a facial disk, that makes it appear to be regarding the world with worried perplexity. Like most owls, northern spotteds are nocturnal, but, unlike most of their brethren, they are picky. They can live only in old-growth forests in the Pacific Northwest. Their diet is restricted and seems to consist mainly of flying squirrels. They’re incapable of building nests of their own, and so, to raise their young, they rely on tree cavities or on basketlike growths that are produced by arboreal infections and known, evocatively, as witches’ brooms.

Hedgehogs, Killing, and Kindness: The Contradictions of Care in Conservation PracticeThe spotted owl’s fastidiousness produced one of the great environmental conflicts of the twentieth century. By the late nineteen-eighties, it was estimated that only fifteen hundred breeding pairs survived. Since the owls depended on old growth, the only way to save them, according to biologists, was to preserve the Northwest’s remaining stands of ancient trees. The timber industry countered that leaving those trees untouched would cost thousands of jobs. The two sides adopted increasingly confrontational tactics. Continue reading →

Paul Watson, Inspiring Parley In 2024

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Visit the website of Parley to learn more. We knew Paul Watson‘s reach was far and wide, so no surprise that talent like this has followed his lead:

Everything starts with inspiration. In pirate lore, a parley is a conference or discussion, especially between opposing sides as a negotiation for terms of a truce. The root of the word parley is parler, French for “to speak” or “to talk.” Parley was founded to create a space where seemingly disparate parties can talk, think and act together to negotiate peace between humankind and the life-giving ecosystem that connects us all: the oceans.

Before growing a global network, we launched with a series of Parley Talks. Each session is a curated gathering with a dedicated topic. The talks are meant to give an overview of the state of the oceans, present a specific cause and garner support for a related initiative, and inspire actual change — be it at home, on a campus, in the workplace, across an industry or around the world.

Trillion Cicada Thrill

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Illustration by Bjorn Lie

Cicadas were in our pages a few times a decade ago but now is the real time for celebrating them. This story by Rivka Galchen is as good as any:

The Peculiar Delights of the Enormous Cicada Emergence

As loud as leaf blowers, as miraculous as math, the insects are set to overtake the landscape.

Their parents passed away thirteen, or maybe seventeen, years ago. They grow up alone, hidden in tunnels of their own making, nursing from the rootlets of trees. Continue reading →

Assisted Evolution

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Photo illustration by Lauren Peters-Collaer

If conservation failure is an option, then assisted evolution is a necessary consideration. Emily Anthes walks us through the idea:

When traditional conservation fails, science is using “assisted evolution” to give vulnerable wildlife a chance.

Scientists are trying to save lowland Leadbeater’s possums, tree-dwelling marsupials known as forest fairies, by crossbreeding them with possums from a separate highland population, a strategy known as genetic rescue.

For tens of millions of years, Australia has been a playground for evolution, and the land Down Under lays claim to some of the most remarkable creatures on Earth.

It is the birthplace of songbirds, the land of egg-laying mammals and the world capital of pouch-bearing marsupials, a group that encompasses far more than just koalas and kangaroos. (Behold the bilby and the bettong!) Nearly half of the continent’s birds and roughly 90 percent of its mammals, reptiles and frogs are found nowhere else on the planet.

Australia has also become a case study in what happens when people push biodiversity to the brink. Continue reading →

Orcas Reconsidered

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Although all the planet’s killer whales are currently considered a single species (Orcinus orca), some of the world’s leading experts are proposing to split them into three species. Photo by imagebroker.com/Alamy Stock Photo

Hakai is the go-to magazine for marine stories, and we hope to see more work of Craig Welch, the science journalist who wrote the article below, in the future:

Meet the Killer Whales You Thought You Knew

The iconic marine mammals may not belong to one species but several. Surprise!

Transient, or Bigg’s, killer whales, not only look, sound, and act differently than their resident killer whale neighbors, they might be an entirely different species. Danita Delimont Creative/Alamy Stock Photo

John Ford still recalls the first time he heard them. He’d been puttering around the Deserters Group archipelago, a smattering of spruce- and cedar-choked islands in Queen Charlotte Strait, between Vancouver Island and mainland British Columbia. He was piloting a small skiff and trailing a squad of six killer whales. Ford, then a graduate student, had been enamored with cetacean sounds since listening to belugas chirp while he worked part-time at the Vancouver Aquarium as a teenager. Now here he was, on August 12, 1980, tracking the underwater conversations of wild killer whales through a borrowed hydrophone. Continue reading →

Seal Spit Surprise

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An eagle flies over seal with its mouth open in water along a shoreline.

A white-tailed eagle swoops toward the water’s surface with an adult grey seal directly beneath. Clare Jacobs

We had not heard of this branch of science before, so we thank Douglas Main and the New York Times for this:

A Seal’s Spray Adds a Chapter to the Science of Spitting

The observation suggests that seals join cobras, archerfish and other animals known to spit, although researchers can only speculate about the reason for the mammal’s expectoration.

On Jan. 3, 2022, Clare Jacobs, a bird-watcher, was delighted to spot a rare white-tailed eagle, or Haliaeetus albicilla, at a nature reserve on the Isle of Wight in southern England. These birds, also known as sea eagles or ernes, vanished from the region some 250 years ago, but more than two dozen birds have been released on the island since 2019. Continue reading →

Whales, Big Brains & Codas

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Shawn Heinrichs

Marine biologists are full of surprises, and those who study whales sometimes give the best surprises. Thanks to Ross Andersen and The Atlantic for this story:

HOW FIRST CONTACT WITH WHALE CIVILIZATION COULD UNFOLD

If we can learn to speak their language, what should we say?

One night last winter, over drinks in downtown Los Angeles, the biologist David Gruber told me that human beings might someday talk to sperm whales. In 2020, Gruber founded Project CETI with some of the world’s leading artificial-intelligence researchers, and they have so far raised $33 million for a high-tech effort to learn the whales’ language. Gruber said that they hope to record billions of the animals’ clicking sounds with floating hydrophones, and then to decipher the sounds’ meaning using neural networks. I was immediately intrigued. For years, I had been toiling away on a book about the search for cosmic civilizations with whom we might communicate. This one was right here on Earth. Continue reading →

Anchovies Rock

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Kalichka / Getty

Anchovies are not exactly a staple in our pages, but they make their presence known. They are important. Thanks to The Atlantic, and their collaboration with Hakai Magazine for this article by Christina Couch that illustrates another remarkable feature of these small creatures:

Anchovies Are a Force to Be Reckoned With

The little fish’s mating rocks the ocean as much as a major storm.

Bieito Fernández Castro wasn’t expecting to find a turbulent hotbed of anchovy sex.

Commissioned by the Spanish government to investigate the conditions behind algae blooms, which kill mussels, Continue reading →

Melipona Bees, A Peruvian Wonder

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Melipona eburnea, a species of bee, is native to the Amazon. Unlike the more familiar but invasive honey bees from Africa and Europe that have spread through the Americas, these bees don’t sting. Ana Elisa Sotelo for National Geographic

The countless wonders of bees, as well as the many problems they now face, have made Melipona bees, also known as stingless bees, of particular interest to our daily scan for news stories:

Native to the tropics, these pollinators are taking a lead role in one of the latest efforts to conserve the Amazon rainforest.

How Birds See Color

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Forget cerulean — a bright, clear sky is actually dominated by ultraviolet light. Humans can’t see ultraviolet light, but many birds can. “Their sky will be essentially an ultraviolet sky,” said Daniel Hanley, a sensory ecologist at George Mason University.

Birds have gotten more attention in our pages than any other person, place or thing since we first started. Today that attention is focused on their sight:

A Bird’s-Eye View of a Technicolor World

Scientists have devised a new video system that reveals how animals see color, and us.

Is the sky truly blue?

Katherine J. Wu On Grizzlies

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a black-and-white photo of several brown bears walking across a grassy plain, in front of mountains

Getty

We always appreciate Katherine J. Wu‘s writings on nature, especially her use of archival material to make a point:

Grizzly Bears Are Mostly Vegan

But humans made them more carnivorous.

On the subject of grizzly bears, the San Francisco Call—a short-lived newspaper that went out of print in 1913—wasn’t what you’d call kind. Continue reading →

Dominica’s Whale Sanctuary

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Fewer than 500 sperm whales are estimated to live in the waters surrounding Dominica. Photograph: By Wildestanimal/Getty Images

This island is already known for sperm whales. Protecting their habitat strengthens Dominica’s reputation as the conservation leader in the region:

Dominica creates world’s first marine protected area for sperm whales

Nearly 300 sq miles of water on west of Caribbean island to be designated as a reserve for endangered animals

The tiny Caribbean island of Dominica is creating the world’s first marine protected area for one of Earth’s largest animals: the endangered sperm whale. Continue reading →

Frogs, Western Ghats & Science

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Sathyabhama Das Biju (from left), James Hanken, Harvard’s Alexander Agassiz Professor of Zoology, and Sonali Garg during a June 2023 field trip to study amphibians in the Western Ghats, a biodiversity hotspot in India. Photo by A.J. Joji

During our seven years living and working in the Western Ghats we came to appreciate frogs through the eyes of our family, those of our staff, as well as travelers and occasional scientific references (the man on the left in the photo to the left having shown up in our pages one of those times). Good to know that the science is being shared for good cause, thanks to Anne J. Manning in this article for the Harvard Gazette:

The Indian Purple Frog, first described by Sathyabhama Das Biju in 2003.

Who will fight for the frogs?

Indian herpetologists bring their life’s work to Harvard just as study shows a world increasingly hostile to the fate of amphibians

Having pulled themselves from the water 360 million years ago, amphibians are our ancient forebears, the first vertebrates to inhabit land.

After 136 years from its original description, Günther’s shrub frog was recently rediscovered in the wild. Credit: S.D. Biju and Sonali Garg

Now, this diverse group of animals faces existential threats from climate change, habitat destruction, and disease. Two Harvard-affiliated scientists from India are drawing on decades of study — and an enduring love for the natural world — to sound a call to action to protect amphibians, and in particular, frogs.

Sathyabhama Das Biju, the Hrdy Fellow at Harvard Radcliffe Institute and a professor at the University of Delhi, and his former student Sonali Garg, now a biodiversity postdoctoral fellow at Harvard’s Museum of Comparative Zoology, are co-authors of a sobering new study in Nature, featured on the journal’s print cover, that assesses the global status of amphibians. It is a follow-up to a 2004 study about amphibian declines.

Franky’s narrow-mouthed frog is among the threatened species. Credit: S.D. Biju and Sonali Garg

Biju and Garg are experts in frog biology who specialize in the discovery and description of new species. Through laborious fieldwork, they have documented more than 100 new frog species across India, Sri Lanka, and other parts of the subcontinent.

According to the Nature study, which evaluated more than 8,000 amphibian species worldwide, two out of every five amphibians are now threatened with extinction. Climate change is one of the main drivers. Continue reading →

Carl Linnaeus, The Man Who Organized Nature

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Thanks to Kathryn Schulz for this review:

The sexual system Linnaeus favored for classifying plants brought a whiff of scandal, which helped spread his name. Illustration by Karlotta Freier

How Carl Linnaeus Set Out to Label All of Life

He sorted and systematized and coined names for more than twelve thousand species. What do you call someone like that?

For the Tyrannosaurus rex, as for Elvis and Jesus, being extremely dead has proved no obstacle to ongoing fame. Last seen some sixty-six million years ago, before an asteroid wiped out three-quarters of the life-forms on earth, it is nonetheless flourishing these days, thanks in large part to Michael Crichton, Steven Spielberg, and elementary-school children all over the world. Continue reading →

The Mind Of A Bee

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Bees’ brains are always of interest, and both the publisher below and the author above makes a good case for why this book matters:

Most of us are aware of the hive mind—the power of bees as an amazing collective. But do we know how uniquely intelligent bees are as individuals? In The Mind of a Bee, Lars Chittka draws from decades of research, including his own pioneering work, to argue that bees have remarkable cognitive abilities. He shows that they are profoundly smart, have distinct personalities, can recognize flowers and human faces, exhibit basic emotions, count, use simple tools, solve problems, and learn by observing others. They may even possess consciousness. Continue reading →

Among The Reasons To Regenerate Soil

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Organikos soil regeneration view from above, early Tuesday morning

When we started the berm where the sugarcane grows now, we knew we had a multi-year project ahead of us. This morning, before the sun had risen enough to shine on the land, I snapped the photo above, looking down on the acreage where we have planted more than 100 trees to provide shade for coffee we will plant in the near future. Besides all that, plenty of good ideas for how and why to regenerate the quality of the soil on that land; here’s some more:

A springtail crawls over snail eggs. ANDY MURRAY

Nearly Two-Thirds of All Species Live in the Ground, Scientists Estimate

Soils are more rich in life than coral reefs or rainforest canopies, providing a home to nearly two-thirds of all species, according to a sprawling new analysis. Continue reading →

Huilo Huilo’s Hojarasca

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We first noticed this film contest three years ago, and have followed it since. The 3rd-place winner of this year’s film contest was made in the Huilo Huilo Biological Reserve, habitat of the endangered species pictured above. In 2009 I was in the middle of a two-year work engagement in southern Chile. During the middle of that year Amie, as well as Seth and Milo, were able to join me for a few months and we spent time in this reserve. I am happy to be reminded:

In a Chilean Forest Reserve, the Remarkable Darwin’s Frog Endures

Four emerging filmmakers from Latin America collaborated to film Darwin’s frog and the biologist who studies the endangered species in Chile’s Huilo Huilo Biological Reserve. “Hojarasca: The Hidden Hope” is the Third-Place Winner of the 2023 Yale Environment 360 Film Contest.

Worldwide, amphibians are going extinct — victims of habitat loss, climate change, pollution, and fungal diseases. Continue reading →