Research shows that adult Corythosaurus dinosaurs had stronger bites and could eat tougher plants than juveniles, but young dinosaurs had surprisingly powerful jaws for their size. According to Gram Research analysis, when dinosaurs developed their distinctive head crest as adults, their skull shape changed to redirect chewing forces away from delicate structures, allowing them to safely eat a wider variety of foods. This suggests dinosaur families may have reduced competition by eating different foods at different ages.
Scientists used computer models to study how a dinosaur called Corythosaurus changed as it grew from a baby to an adult. According to Gram Research analysis, they discovered that young dinosaurs and adults had different jaw strengths and could eat different types of plants. Baby dinosaurs had surprisingly strong bites for their size, while adults developed a special crest on their heads that helped them eat tougher plants. This research shows that dinosaur families may have eaten different foods depending on their age, which helped them all survive together in the same environment.
Key Statistics
A 2026 research article published in Evolution found that adult Corythosaurus dinosaurs had significantly higher bite forces than juveniles and could process a wider range of plant materials, while juvenile dinosaurs exhibited unexpectedly strong bites relative to their body size.
According to a 2026 biomechanical modeling study of Corythosaurus casuarius, the development of the supracranial crest in mature dinosaurs caused a shift in stress distribution during chewing, with lower stress in the snout and higher stress in the braincase compared to crestless juveniles.
A 2026 analysis of hadrosaurid dinosaur fossils revealed that jaw muscle size showed negative allometry—an unusual growth pattern where muscles grew slower than body size—which increased juvenile bite force and diet breadth relative to expectations for their size.
The Quick Take
- What they studied: How a dinosaur’s ability to chew and eat different foods changed as it grew from a baby to an adult
- Who participated: Scientists analyzed fossil skulls of Corythosaurus casuarius dinosaurs at different life stages, from juveniles to fully grown adults
- Key finding: Adult dinosaurs had stronger bites and could eat tougher plants than babies, but babies had surprisingly powerful jaws for their size. When dinosaurs developed their distinctive head crest as adults, the shape of their skull changed how chewing forces were distributed
- What it means for you: This helps us understand how dinosaur families may have lived together by eating different foods at different ages, similar to how some animal families today divide up food sources. However, this is based on fossil analysis and computer models, not direct observation
The Research Details
Scientists studied fossils of Corythosaurus dinosaurs from different ages and used 3D computer models to simulate how their jaws worked. They created digital versions of dinosaur skulls and used physics-based software to calculate how much force the jaw muscles could produce and where stress would build up in the skull during chewing. This allowed them to compare young dinosaurs to adults without needing to actually test the fossils.
The researchers measured jaw muscle size, bite force, and how stress was distributed across the skull. They looked for patterns that changed as the dinosaurs aged. This approach is more detailed than previous studies that only looked at 2D pictures of skull shape or tooth wear patterns.
By analyzing multiple individuals at different life stages, the team could identify consistent patterns of change that happened as Corythosaurus grew up, rather than just looking at one or two examples.
This research method is important because it lets scientists test ideas about how extinct animals lived without damaging precious fossils. Computer models can show things that are impossible to see just by looking at bones, like how much force a jaw could produce or where stress concentrated during chewing. This helps answer big questions about how dinosaur families organized themselves and used resources.
The study was published in Evolution, a respected scientific journal that focuses on how living things change over time. The researchers used established biomechanical modeling techniques that have been tested and validated by other scientists. The analysis included multiple individuals at different life stages, which strengthens the findings. However, the study is based on computer models and assumptions about muscle size and attachment points, which means some details may not be perfectly accurate to how real dinosaurs worked
What the Results Show
Adult Corythosaurus dinosaurs had significantly stronger bite forces than juveniles, meaning they could crush tougher plants and a wider variety of food. However, the jaw muscles didn’t grow as much as scientists would normally expect for a dinosaur of that size—this unusual pattern actually gave juvenile dinosaurs stronger bites relative to their body size than expected.
When dinosaurs developed their distinctive head crest as they matured, the shape of their skull changed dramatically. This crest formation caused stress from chewing to be distributed differently across the skull. Young dinosaurs without crests showed a more basic stress pattern, while adults with crests experienced lower stress in the front of the snout and higher stress in the braincase area behind the crest.
This shift in stress distribution appears to be a direct result of how the crest changed the skull’s shape. The crest essentially redirected chewing forces away from delicate structures, protecting them during the powerful bites that adults could produce. The researchers suggest this change in skull structure was an evolutionary adaptation that allowed adults to eat tougher foods safely.
The study revealed that juvenile dinosaurs had more flexibility in their diet than previously thought. Their surprisingly strong bites for their size meant they could eat a broader range of plant materials than expected. This suggests that young and old dinosaurs in the same family group may have competed less for food because they could each access different plant resources. The negative allometry of jaw muscles—meaning they grew slower than the rest of the body—is unusual and suggests this pattern may have been specifically selected for during evolution.
Earlier research on hadrosaurid dinosaurs generally showed that adults ate tougher plants than juveniles, but those studies only looked at 2D skull shapes and tooth wear patterns. This new research confirms that general trend but provides much more detail about how it worked mechanically. The finding about jaw muscle size is particularly novel—most large animals have jaw muscles that grow proportionally larger as they age, but Corythosaurus appears to have broken this rule. This suggests the dinosaur family may have evolved this unusual pattern specifically to allow juveniles to eat a wider variety of foods.
The study is based on computer models, not actual living dinosaurs, so some assumptions about muscle size and how forces work may not be perfectly accurate. The researchers had to estimate where muscles attached to bones based on living reptiles, which may not perfectly match extinct dinosaurs. The sample size of fossils available for study was limited, so the findings represent what scientists could analyze rather than a complete picture of the species. Additionally, the models assume static chewing positions rather than the complex movements that real chewing involves. The research cannot directly prove that dinosaurs actually ate different foods at different ages—it only shows they had the physical ability to do so
The Bottom Line
This research provides strong evidence that hadrosaurid dinosaurs like Corythosaurus likely ate different foods at different life stages. The findings support the idea that dinosaur families may have reduced competition for food by specializing in different plant materials based on age. However, these are conclusions from computer models and fossil analysis, not direct observation. Confidence level: Moderate to High for the biomechanical findings, but lower for actual dietary behavior since we cannot directly observe what dinosaurs ate.
Paleontologists and evolutionary biologists studying dinosaur ecology and behavior should find this research valuable. Museum educators and science communicators can use these findings to explain how dinosaur families may have lived together. General science enthusiasts interested in dinosaurs will find this helps answer questions about how dinosaurs survived and organized their societies. This research is less relevant to people studying modern animals or human nutrition, though it provides interesting context for understanding how resource partitioning works in nature.
This is historical research about extinct animals, so there is no timeline for personal benefits. However, the research contributes to our understanding of dinosaur evolution over millions of years. Scientists may use these findings to guide future research on other dinosaur species and to refine models of how ancient ecosystems worked
Frequently Asked Questions
Did baby dinosaurs eat different foods than adult dinosaurs?
Research suggests they likely did. Adult Corythosaurus had stronger bites for tougher plants, while juveniles had surprisingly strong jaws for their size, allowing them to eat softer or different plant materials. This may have reduced competition within dinosaur families.
How did dinosaurs change as they grew up?
As Corythosaurus matured, their jaw strength increased and their skull shape changed dramatically with the development of a distinctive crest. This crest redirected chewing forces to protect delicate skull structures, enabling adults to safely eat tougher foods.
What is a supracranial crest and why did dinosaurs develop one?
A supracranial crest is a bony structure that grows on top of the skull. In Corythosaurus, it developed as the dinosaur matured and changed how chewing forces were distributed across the skull, protecting delicate areas while allowing stronger bites.
How do scientists study how extinct dinosaurs ate?
Scientists use 3D computer models of fossil skulls to simulate jaw strength and chewing forces. They analyze tooth wear patterns and skull shape to infer diet. These models show what foods dinosaurs could physically process, though not what they actually preferred.
Why would dinosaur families benefit from eating different foods at different ages?
If juveniles and adults ate different foods, they wouldn’t compete with each other for the same resources. This allowed more dinosaurs to survive in the same area, similar to how different age groups in modern animal families sometimes eat different foods.
Want to Apply This Research?
- Track learning milestones about dinosaur anatomy and biomechanics: record which dinosaur species you’ve learned about, what feeding strategies they used, and how their bodies changed as they grew. Create a personal ‘dinosaur growth chart’ comparing juvenile and adult adaptations across different species
- Use the app to explore 3D models of dinosaur skulls at different life stages and compare how their shapes changed. Set reminders to read one paleontology research summary per week to build knowledge about how scientists study extinct animals and use computer modeling to understand ancient life
- Track your understanding of biomechanical concepts by noting which dinosaur adaptations you can explain to others. Monitor your engagement with paleontology content and create a personal collection of favorite dinosaur species with notes about their feeding strategies and life stage changes
This article discusses paleontological research based on fossil analysis and computer modeling of extinct animals. The findings represent scientific interpretations of how dinosaurs may have lived, not direct observations. Computer models make assumptions about muscle size, attachment points, and biomechanical function that may not perfectly reflect actual dinosaur anatomy or behavior. This research does not provide medical, nutritional, or health advice for humans or modern animals. Always consult primary scientific sources and expert paleontologists for detailed information about dinosaur research.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.