Different species of frogs call out in various ways, and they may sound like musical instruments, construction tools or other animals.

From a Motorcycle Revving to a Pig Oinking, Eight Amazing Sounds Made by Frogs

All over the world, different types of frogs call out in various ways to warn others or attract mates

How do scientists know which insects can see color?

Can Insects See Color? And More Questions From Our Readers

You’ve got questions. We’ve got experts

The Santa Marta sabrewing, a highly elusive bird, showed itself in 2022, in Colombia, giving hope to conservationists.

Dedicated Scientists and Birdwatchers Tracked Down These Five ‘Lost’ Birds

A worldwide search party is using 21st-century tools to uncover long-unseen species, one of which hadn’t been found since the 19th century

Two ivory-billed woodpeckers in one of the historic photographs that Arthur Allen captured in the field in 1935.

The Hero Who Convinced His Fellow Ornithologists of the Obvious: Stop Shooting Rare Birds and Watch Them Instead

Too late to save the ivory-billed woodpecker, Arthur Allen changed science forever with his seemingly simple idea

A view of the soft-bottomed Los Angeles River below the 400-foot-long Taylor Yard Bridge in Elysian Valley. The newest Taylor Yard parcel, currently fenced off as it undergoes toxic remediation, can be seen on the far right.

How the Arrival of an Endangered Bird Indicates What’s Possible for the L.A. River

Could the waterway that the city was built around make a comeback?

In Ecuador, a glass frog from a new species identified in 2022, Hyalinobatrachium nouns, hangs from the underside of a leaf, seen from below.

The Andes’ Translucent Glass Frogs Need to Be Seen to Be Saved

The amphibians are at the mercy of mining operations that are destroying their ecosystems, but local communities throughout South America are fighting back

A dried sample of the original Penicillium mold that Fleming discovered in 1928.

The ‘Penicillin Girls’ Made One of the World’s Most Life-Saving Discoveries Possible

The true, forgotten and sometimes-stinky history of the cohort who took Alexander Fleming’s innovation and forever changed the face of modern medicine

A Komodo dragon flicks its tongue out on Komodo Island, part of Komodo National Park in Indonesia.

The Most Infamous Komodo Dragon Encounters of the Century, From a Fatal Attack on an 8-Year-Old Boy to a Zookeeper Bitten by a Battling Animal

As tourism to see the endangered species is on the rise and their habitat decreases, on some very rare occasions, the animals bite

An armored mist frog warms itself on a wet rock. Once thought extinct, this species was rediscovered in locales where it has access to the sun’s warmth, which can help frogs fight the often-deadly fungal infections.

How Frogs Are Kicking Back Against a Lethal Fungus

Scientists are seeing signs of resistance to the infections that have been wiping out the world’s amphibian populations—and they’re developing methods to fight the pathogen

A sperm whale swims away, leaving a cloud of feces.

Scientists Are Crafting Fake Whale Poop and Dumping It in the Ocean

The artificial waste could fertilize the ocean and sequester carbon

By examining the fossils of ancient creatures, scientists are able to see the origins of features that make mammals different from other animals.

How to Make a Mammal in Nine Evolutionary Steps

From the formation of inner ear bones to the rise of hair to cover our bodies, these developments made us distinct from other animals

The white substance on this fly is a fungus called Entomophthora muscae.

This Parasitic Fungus Turns Flies Into Zombie Insects

The pathogen takes over the brains of its hosts and controls them for its own sinister ends

A Hickory Nut Gorge green salamander rests on a log.

Hurricane Helene Battered the ‘Salamander Capital of the World’ With Floods and Landslides. Will the Beloved Amphibians Survive the Aftermath?

The storm decimated a region rich with dozens of species already struggling with habitat loss and disease

A photo of Neptune, taken by the Voyager 2 probe, with the colors rebalanced to represent its truest appearance

The Six Most Amazing Discoveries We’ve Made About Neptune

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space telescopes

The crowning glory of the Gardenia brighamii is its pearly flower.

Can Fungi Save This Endangered Hawaiian Tree?

By inoculating greenhouse na’u seedlings with mycorrhizal fungi, researchers hope to boost survival odds when the plants are returned to the wild

If a reader stared at one of Spectropia’s illustrations under a strong light source for about 20 seconds and then gazed at a blank wall in a darkened room, a version of that image in inverted colors appeared.

This 19th-Century ‘Toy Book’ Used Science to Prove That Ghosts Were Simply an Illusion

“Spectropia” demystified the techniques used by mediums who claimed they could speak to the dead, revealing the “absurd follies of Spiritualism”

A new study suggests that among adolescents mental health disorders could be “socially transmitted,” though its researchers could not establish any direct cause.

The Future of Mental Health

Is Depression Contagious?

The science about whether mental health conditions can spread socially is uncertain, but exposure to an affected peer can drive awareness

Tourists watch leatherback sea turtle hatchlings crawl toward the sea under the glow of less intrusive red lights. Artificial white lighting can attract the hatchlings away from the ocean, where predators may be lurking.

From Prolonging Wallaby Pregnancies to Disorienting Hatchling Turtles, 11 Ways Artificial Lights Affect Animals

From the busy cities to ocean waters, our need to illuminate the world has had some strange and tragic consequences

Analysis of the Bullet Cluster, which was formed after two large clusters of galaxies collided, supports the existence of dark matter.

After Decades of Searching, Are Physicists Closing In on Dark Matter?

With no conclusive laboratory results, researchers are turning to other methods to find the elusive substance

Jonathan Shapiro, a Vermont-based wilderness instructor and certified “specialist” tracker on the East Coast, during an evaluation in the California desert.

Even as A.I. Technology Races Ahead, the Prehistoric Science of Wildlife Tracking Is Making a Comeback

Humans perfected how to identify wild animals over millennia, and now biologists are rediscovering the exceptional worth of the tracks and marks left behind

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