The dodo has spent more than three centuries as shorthand for stupidity, a bird so famously foolish that its name became an insult long before most people could name a single fact about how it actually lived. A study published in the Zoological Journal of the Linnean Society and reported publicly starting August 5, 2026, upends that reputation almost entirely, using rare CT scans of the world's only complete dodo skulls to reconstruct how the extinct bird actually perceived its environment.

Working with two of the rarest skulls in existence

The research, led by Sara Citron of the University of Lethbridge's Iwaniuk Lab in Canada, alongside an international team including researchers from the University of Copenhagen, the Natural History Museum, the Smithsonian Institution, and several other institutions, faced an unusual constraint from the outset: only two complete dodo skulls are known to exist anywhere in the world, one housed at the Natural History Museum Denmark in Copenhagen and the other at the Oxford University Museum of Natural History. A third partial skull was also incorporated into portions of the analysis, giving researchers an exceptionally rare, if still extremely limited, physical dataset to work from for a bird that went extinct in the late 17th century.

Using high-resolution CT scanning, the research team digitally reconstructed the internal cavity once occupied by each skull's brain, a technique known as creating an endocast. They then compared those reconstructions against similar scans taken from 36 living pigeon and dove species, the dodo's closest surviving relatives, examining eye sockets, nerve openings, and the proportional size of specific brain regions across the entire comparative sample.

The cognition myth gets directly addressed

Perhaps the most consequential single finding involves the specific brain region responsible for what scientists generally consider higher cognitive function. According to the research, the dodo's forebrain, the region associated with cognition and memory in birds, was not smaller in proportion to the rest of its brain when compared against other pigeon species. Study co-author Andrew Iwaniuk summarized the finding in blunt terms that directly confront the bird's popular reputation: "The dodo has the most unusual skull with a strangely domed head, but the part of its brain that determines cognition was exactly as big as what one would expect for a bird of its size."

That detail matters enormously given how thoroughly the "stupid dodo" characterization has embedded itself in popular culture. Researchers involved in the study suggest the bird's reputation for foolishness likely traces not to any actual cognitive deficiency, but to a specific, fatal behavioral trait: dodos appear to have had a tendency to curiously approach other dodos in distress, a trait that would have made them tragically easy for sailors and introduced predators to hunt in large numbers once humans arrived on Mauritius, the bird's only native habitat.

An unexpectedly owl-like visual system

While the dodo's cognitive capacity turned out to be entirely unremarkable for a bird its size, its sensory systems told a considerably more distinctive story. The research team found that the dodo's optic lobes, the brain region responsible for processing visual information, were more than three times smaller relative to overall brain size compared to the Nicobar pigeon, the dodo's closest living relative. That reduction places the dodo's visual processing capacity in territory more typical of owls than of the daytime-active pigeons and doves that make up most of its extended family, hinting that the bird may have been active during dawn and dusk hours rather than relying primarily on daylight vision the way its living relatives do.

Compensating through smell and touch instead

If the dodo's visual system was unusually reduced, other senses appear to have picked up considerable slack. The study found evidence suggesting the bird may have depended more heavily on smell than modern pigeons and doves typically do, alongside a large upper beak that appears well suited for collecting detailed tactile information from its immediate surroundings. Together, researchers believe this combination, reduced daytime vision paired with enhanced smell and touch sensitivity through its distinctive oversized beak, likely shaped how the dodo actually located food and navigated its island habitat on Mauritius before its extinction.

Dr. Christy Anna Hipsley of the Natural History Museum Denmark, one of the study's co-authors, described the broader value of finally having both complete skulls analyzed together using consistent modern imaging techniques: "By comparing digital reconstructions of the world's only two complete dodo skulls, we now have a much stronger foundation for identifying which features are truly characteristic of the species and what they can tell us about how the dodo lived."

A close relative that turned out to be almost ordinary

The study's comparative scope extended beyond the dodo alone to include the Rodrigues Solitaire, another extinct flightless bird closely related to the dodo that once inhabited the nearby island of Rodrigues. The Solitaire had long been assumed to be essentially a scaled-up version of an ordinary pigeon, and the study's findings largely confirmed that assumption: its sensory systems closely resembled those of its living pigeon and dove relatives, aside from an oddly shaped skull unique to the species. That contrast makes the dodo's own considerably more distinctive sensory adaptations stand out even more sharply, since its closest relative among the two extinct island birds studied turned out to be far less anatomically unusual overall.

Why a 300-year-old myth is only now getting corrected

Dr. Peter Andrew Hosner, also of the Natural History Museum Denmark, framed the broader significance of the findings in terms of how persistently incomplete our understanding of even famous extinct species can remain. "The dodo has become a symbol of extinction, but in many ways it remains surprisingly mysterious," Hosner said. "The study provides an important new framework for understanding its behavior and ecology." That mystery persists in part because so little physical evidence of the actual bird survives, a scarcity that has left popular culture largely free to fill the gap with caricature rather than careful anatomical study, a gap this research directly begins closing using tools and techniques that simply didn't exist when the dodo's reputation as a foolish, clumsy bird first calcified centuries ago.

What comes next for understanding an icon of extinction

The research team is careful to note that anatomy alone cannot definitively confirm exact behavior; a brain structure suited to smell-based foraging or dawn-and-dusk activity indicates capability and likely tendency rather than directly observed fact, since no living scientist has ever watched a dodo forage in its natural habitat. Still, as one of the researchers involved in the study put it, every new piece of anatomical evidence helps move understanding of the dodo beyond myth and toward a more accurate picture of how this frequently misunderstood bird actually lived.

For a species whose name has become globally synonymous with obsolescence and foolishness, largely on the strength of secondhand historical accounts and centuries of cultural repetition rather than careful scientific study, this analysis of its two surviving complete skulls offers something the dodo has rarely received since its extinction: a genuinely evidence-based reconsideration of who it actually was.

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*Sources cited in this article include the peer-reviewed study "The sensory world of the Dodo and Solitaire revealed by endocast and skull anatomy," published in the Zoological Journal of the Linnean Society, and reporting from ScienceDaily, Phys.org, EurekAlert, Sci.News, Bioengineer.org, and Flinders University's news office covering research led by Sara Citron of the University of Lethbridge. All figures reflect reporting available as of August 9, 2026.*