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Charles Darwin

Participants listened to pairs of mating calls made by numerous creatures, including male green treefrogs.

Humans and Animals Often Like the Same Mating Calls, Supporting a 150-Year-Old Observation by Charles Darwin

New research by Smithsonian scientists suggests that preferences for certain sounds might be evolutionarily conserved

Researchers have produced hundreds of Galápagos tortoises genetically related to the extinct Floreana Island subspecies, thanks to a surprising discovery and captive breeding program.

Giant Tortoises Vanished From the Galápagos’ Floreana Island More Than 150 Years Ago. Now, Conservationists Have Brought Them Back

Researchers released captive-bred tortoises carrying the ancestry of the extinct local species

The 2026 commemorative coin set, featuring five new designs

See the New Coins Celebrating the Legacies of Elizabeth II, Charles Darwin and the British Grand Prix

Released by the Royal Mint, the designs from this year’s commemorative coin set also honor anniversaries connected to the King’s Trust and the Zoological Society of London

Researchers collected images of lizards with missing limbs from experts around the world. Pictured here: an American green anole.

These ‘Pirate Lizards’ Thrive With Three Legs

A new study finds that many lizards with missing limbs fare surprisingly well despite their impairment

A superb fairy-wren calls to a Horsfield's bronze-cuckoo. Brood parasites like cuckoos lay eggs in other birds' nests and leave them behind for the host birds to raise.

Birds Make an Alarm Call That Spans Species and Continents—and May Offer Insight Into the Evolution of Human Language

More than 20 species make a nearly identical noise to warn nearby birds of brood parasites, a behavior that bridges the “sharp division between animal communication systems and human language”

Scientists are investigating the production of ancestral alkaloids by tomatoes in the Galápagos Islands.

Something Strange Is Happening to Tomatoes Growing on the Galápagos Islands

Scientists say wild tomato plants on the archipelago’s western islands are experiencing “reverse evolution” and reverting back to ancestral traits

The Galápagos yellow warbler is a genetically distinct subspecies of the yellow warbler, which might be familiar to residents of the United States.

Traffic Noise May Be Making These Bright Yellow Birds More Aggressive in the Galápagos Islands, Study Suggests

Male Galápagos yellow warblers appear to be shifting their behavior and adjusting their calls in response to the din of passing vehicles

The two Just Stop Oil activists spray-painted "1.5 is dead" on the gravestone of Charles Darwin.

Climate Activists Spray-Paint Warning on Charles Darwin’s Grave

The two protesters hoped to draw attention to reports that global temperatures in 2024 exceeded 1.5 degrees Celsius above pre-industrial levels for the first time

HMS Beagle sails through the Straits of Magellan

On This Day in History

On This Day in 1831, Charles Darwin Embarked on a Journey That Led to His Groundbreaking Theory of Evolution by Natural Selection

Darwin was just 22 when he set out on a voyage that would change the way humanity understands itself and the natural world

The blind side of a Remo flounder's head as it was being dissected

These Fish Transformed Their Dorsal Fins Into Taste Buds

From tasting to hunting to hitching a ride, some fins have evolved for a variety of uses beyond swimming

For rabbits and hares, females typically weigh more than males, according to a new study.

For Most Mammal Species, Males Actually Aren’t Larger Than Females, Study Finds

New research upends a long-held theory that male mammals tend to be bigger than their female counterparts

The cat-eyed snake slithers in the Peruvian Amazon.

A Serpentine ‘Explosion’ 125 Million Years Ago Primed Snakes for Rapid, Diverse Evolution

Researchers say an evolutionary “singularity” led to several small, quick changes in snake species, from legless bodies and flexible skulls to chemical-sensing abilities

An etching of Darwin's study, commissioned a week after he died.

See What Charles Darwin Kept in His ‘Insanely Eclectic’ Personal Library, Revealed for the First Time

On the English naturalist’s 215th birthday, more than 9,000 titles from his expansive collection are now accessible online

This year's titles include 100 Mighty Dragons All Named Broccoli, Superpowered Animals and Once Upon a Book.

The Best Books of 2023

The Ten Best Children’s Books of 2023

This year’s top titles include an art history primer, a collection of silly poems and a mathematical word problem in disguise

Striated caracaras are falcons, but they don't act much like other birds of prey.

These Brainy Falcons Are Smarter Than You Might Think

Striated caracaras solved up to eight puzzle box problems in a new study, suggesting they are cognitively complex, like crows and parrots

Darwin's signature on the note

Charles Darwin’s Rare Autographed Manuscript Could Sell for $800,000

The English naturalist was responding to a magazine editor who had asked for a handwriting sample

A page from Darwin's 1837 notebook showing the Tree of Life sketch.

Good News

Stolen Charles Darwin Notebooks Returned After 22 Years

One of the items contains the renowned naturalist’s first sketch of the Tree of Life

Dusty, the author's cat, lies on a catnip patch on a supervised visit outside. She has a smaller brain than her ancestors.

Your Pet Cat Has a Smaller Brain Than Its Wild Ancestors

The researchers replicated experiments done in the ‘60s and ‘70s with updated knowledge of feline lineage

Fernanda, the Fernandina Giant Tortoise was found in 2019 on an expedition. (Pictured here) The tortoises on Fernandina Island were thought to have gone extinct from volcanic eruptions.

Meet Fernanda, the Galápagos Tortoise Lost for Over a Century

Now that researchers have confirmed the animal belongs to the previously vanished species, conservationists are planning to search the islands for a mate

While erosion is a natural occurrence that happens over time, the Galàpagos Islands are more at risk to threats of erosion because of climate change.

Iconic Natural Rock Feature in the Galápagos Islands Crumbles Into the Ocean

The top of the Darwin’s Arch, a natural stone archway, fell as a result of natural erosion

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