CT scans reveal dodo was smarter, more sensory-aware than myth suggests
International research team finds the extinct bird had keen smell, sensitive beak, and nocturnal traits—overturning centuries of 'dumb bird' stereotypes.
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Summary, timeline and people extracted by Claude from 8 items across 2 sources · 3h ago. Quotes are verbatim.
A new study led by Canada's University of Lethbridge used CT scans of rare dodo skulls to reveal the extinct bird possessed a larger olfactory brain region, smaller optic lobes suggesting low-light vision, and cognitive abilities consistent with its size—contradicting the long-held "dumb dodo" reputation. The research suggests the bird's fatal tendency to curiously approach humans in distress was rooted in social behavior and island naivety, not lack of intelligence, and that dodos may have been active primarily at dusk and night.
- CT scans of three dodo skulls reveal cognitive brain size proportional to body size, contradicting the 'dumb bird' stereotype rooted in the species' fatal naivety toward humans.
- Dodos had unusually small optic lobes and larger olfactory brain regions, suggesting nocturnal or crepuscular (dawn/dusk) activity and reliance on smell over sight—adaptations typical of owl-like vision.
- The bird's trusting, social behavior that led to rapid extinction was likely an evolutionary adaptation to island life, not a sign of low intelligence.
- Research was conducted by an international team including University of Lethbridge, Flinders University, Smithsonian Institution, National Museums Scotland, and University of Copenhagen.
How it unfolded
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Analysis Phys.org detailed analysis of intelligence findings
Comprehensive reporting explains that dodo brains were not smaller than expected for birds their size, and their small optic lobes likely meant pixelated, light-sensitive vision similar to nocturnal species like the night parrot.
“Dodos have always been portrayed as silly or confused birds, a reputation that probably came from their trusting behavior that resulted in hundreds of animals being killed in a very short time.”
Sara Citron, Ph.D. candidate · Google News ↗ -
Report Multiple outlets cover brain reconstruction
News agencies including Phys.org, ScienceDaily, The Times of India, and Sci.News publish detailed coverage of the dodo brain reconstruction study and its findings.
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Report Science Daily reports sensory discoveries
CT scans of rare dodo skulls suggest the extinct bird had a stronger sense of smell, highly sensitive beak, and a lifestyle extending into dawn and dusk, overturning centuries-old myths.
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Report Initial study findings released
An international research team led by University of Lethbridge publishes CT scan analysis of dodo skulls revealing the bird's cognitive abilities were proportional to its size and that it possessed traits typical of nocturnal birds.
What people are saying verbatim
“Dodos have always been portrayed as silly or confused birds, a reputation that probably came from their trusting behavior that resulted in hundreds of animals being killed in a very short time.”
Sara Citron, Ph.D. candidate, University of Lethbridge · Phys.org ↗ · Aug 9, 8:32 AM
“There is no evidence that the dodo was any less intelligent than its relatives—and we know that pigeons are pretty smart.”
Andrew Iwaniuk, Senior author, University of Lethbridge · Phys.org ↗ · Aug 9, 8:32 AM
“We suspected that dodos were better adapted to seeing in darker conditions. They had slightly larger eyes, but unusually small optic lobes, an area of the brain that processes light.”
Vera Weisbecker, Professor of evolutionary biology, Flinders University · Phys.org ↗ · Aug 9, 8:32 AM
“We see similarly small optic lobes in many nocturnal birds, like the elusive Australian night parrot or the New Zealand kakapo, indicating they relied little on sight and were active mainly at night.”
Vera Weisbecker, Professor of evolutionary biology, Flinders University · Phys.org ↗ · Aug 9, 8:32 AM
“We suspect that dodos may have relied quite strongly on their sense of smell because the area of the brain related to smell was quite large, unlike the solitaire and other pigeons.”
Aubrey Keirnan, Ph.D. student, Flinders University · Phys.org ↗ · Aug 9, 8:32 AM
“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.”
Andrew Iwaniuk, Senior author, University of Lethbridge · Phys.org ↗ · Aug 9, 8:32 AM