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Duck-billed dinosaur crests not linked to sense of smell
January 25, 2006University of Toronto study dispels decades-old theory
After decades of debate, a U of T researcher has finally determined that duck-billed dinosaurs' massive but hollow crests had nothing to do with what many scientists suspected - the sense of smell.
"It appears that the brain changed very little from their non-crested dinosaur ancestors, and that the primary region of the sense of smell was located right in front of the eyes - and coincidentally, that's where it is in birds, crocodiles, mammals and basically all four-legged animals."
Evans studied fossils from a group of herbivorous dinosaurs called lambeosaurs, which are often referred to as crested duck-billed dinosaurs. Lambeosaurs are easily recognizable for their large cranial crests, which contain elongated nasal passages and loop over their skull. Duck-billed dinosaurs are sometimes referred to as the "Cows of the Cretaceous period" and lived 85 million to 65 million years ago.
Evans reconstructed the dinosaurs' brain cavity using well-preserved fragments of fossilized bone and created the first-ever cast of the lambeosaur brain, which is approximately the size of a human fist. The findings add weight to two currently popular theories: that the crests were used to create resonant sounds to attract mates or warn of predators, or that they were used for visual display in mate selection or species recognition, similar to feather crests in some birds.
University of Toronto
Duck-billed dinosaurs outgrew predators to survive
With long limbs and a soft body, the duck-billed hadrosaur had few defenses against predators such as tyrannosaurs. But new research on the bones of this plant-eating dinosaur suggests that it had at least one advantage: It grew to adulthood much faster than its predators, giving it superiority in size.
New dinosaur from Mexico offers insights into ancient life on West America
A new species of dinosaur unearthed in Mexico is giving scientists fresh insights into the ancient history of western North America, according to an international research team led by scientists from the Utah Museum of Natural History at the University of Utah.
Toothy dinosaur newest to come out of southern Utah
The newest dinosaur species to emerge from Grand Staircase-Escalante National Monument had some serious bite, according to researchers from the Utah Museum of Natural History at the University of Utah.
More Duck-billed Dinosaur Current Events and Duck-billed Dinosaur News Articles
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Denver, Colorado - Museum of Natural History, Duck Billed Dinosaur Giclee Poster Print, 12x9 by Art.com Art.com is the world's largest retailer of art prints, posters, photographs, and framed artwork. With our huge selection of over 400,000 prints, you'll easily find the perfect piece for your home, office, or classroom. Our art is printed on quality paper. When you order framed artwork, the piece is built by our team of in-house professionals. Visit our Amazon store today at www.amazon.com/artdotcom to find Special Offers and search for products based on 'Artist Name' and 'Subject Categories' such as Movie, Music, Vintage, TV, Children, Travel, Kitchen, Museum Art, Animals, Floral, Motivational, and Sports. Art.com is dedicated to providing you with high quality products and service by offering you 100% satisfaction guaranteed. We ship internationally to over 80 countries. Decorate your... |
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Hadrosaurus: The Duck-billed Dinosaur (Graphic Dinosaurs) by Rob Shone (Author), Terry Riley (Illustrator) | |
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Imaginext Whip the Parasaurolophus by Fisher-Price Watch out! Whip the Duck-Billed Dino head moves, and he's walking fast! Imagine a primitive civilization of humans and dinosaurs, living in a lush, green land. One side - the predators are using up its natural resources, wiping out everything and everyone that gets in their way. The other side - the ecovores want to preserve their land. And they're willing to fight to make that happen. Will the predators succeed in destroying the land, causing their own extinction? Or will the ecovores stop the destruction and make the land a place where dinosaurs and human can live together peacefully? With Imaginext Adventures, anything is possible. Measures 6"H. |
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Duck-Billed Dinosaur Animals Art Poster Print, 17x11 by Art.com Art.com is the world's largest retailer of art prints, posters, photographs, and framed artwork. With our huge selection of over 400,000 prints, you'll easily find the perfect piece for your home, office, or classroom. Our art is printed on quality paper. When you order framed artwork, the piece is built by our team of in-house professionals. Visit our Amazon store today at www.amazon.com/artdotcom to find Special Offers and search for products based on 'Artist Name' and 'Subject Categories' such as Movie, Music, Vintage, TV, Children, Travel, Kitchen, Museum Art, Animals, Floral, Motivational, and Sports. Art.com is dedicated to providing you with high quality products and service by offering you 100% satisfaction guaranteed. We ship internationally to over 80 countries. Decorate your... |
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Duck-Billed Dinosaurs (Meet the Dinosaurs) by Don Lessem (Author), John Bindon (Author) |
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Denver, Colorado - Museum of Natural History, Duck Billed Dinosaur Giclee Poster Print, 32x24 by Art.com Art.com is the world's largest retailer of art prints, posters, photographs, and framed artwork. With our huge selection of over 400,000 prints, you'll easily find the perfect piece for your home, office, or classroom. Our art is printed on quality paper. When you order framed artwork, the piece is built by our team of in-house professionals. Visit our Amazon store today at www.amazon.com/artdotcom to find Special Offers and search for products based on 'Artist Name' and 'Subject Categories' such as Movie, Music, Vintage, TV, Children, Travel, Kitchen, Museum Art, Animals, Floral, Motivational, and Sports. Art.com is dedicated to providing you with high quality products and service by offering you 100% satisfaction guaranteed. We ship internationally to over 80 countries. Decorate your... |
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Dinosaurios Pico De Pato / Duck-Billed Dinosaurs (Conoce a Los Dinosaurios) (Spanish Edition) by Don Lessem (Author), John Bindon (Author) |
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Denver, Colorado - Museum of Natural History, Duck Billed Dinosaur Giclee Poster Print, 24x18 by Art.com Art.com is the world's largest retailer of art prints, posters, photographs, and framed artwork. With our huge selection of over 400,000 prints, you'll easily find the perfect piece for your home, office, or classroom. Our art is printed on quality paper. When you order framed artwork, the piece is built by our team of in-house professionals. Visit our Amazon store today at www.amazon.com/artdotcom to find Special Offers and search for products based on 'Artist Name' and 'Subject Categories' such as Movie, Music, Vintage, TV, Children, Travel, Kitchen, Museum Art, Animals, Floral, Motivational, and Sports. Art.com is dedicated to providing you with high quality products and service by offering you 100% satisfaction guaranteed. We ship internationally to over 80 countries. Decorate your... |
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Denver, Colorado - Museum of Natural History, Duck Billed Dinosaur Giclee Poster Print, 16x12 by AllPosters.com AllPosters.com is the world's #1 seller of posters, prints, photographs, specialty products and framed art. We're dedicated to bringing our customers the best selection of high quality wall décor that is perfect for their home or office. Browse our catalog of over 300,000 items that include entertainment and specialty posters, decorative prints, and art reproductions. Whether you're looking for your favorite movie or music poster, a framed Monet reproduction, or a print of the Eiffel Tower you will find it at AllPosters.com. Visit our Amazon store today at www.amazon.com/allposters to find Special Offers and search by subject category or artist. AllPosters.com provides unmatched service with a 100% satisfaction guarantee. We ship internationally to over 80 countries. Decorate your... |
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Tsintaosaurus and Other Duck-billed Dinosaurs (Dinosaur Find) by Dixon (Author), Dougal (Author), Weston (Illustrator), Steve (Illustrator), Field (Illustrator), James (Illustrator) Some plant eating dinosaurs developed a bill similar to a duck's. But unlike ducks, the dinosaurs also had hundreds of little teeth. Find out how the duckbilled dinosaurs survived among predators. |
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