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<p style="text-align:left">A new hypothesis proposes that non-avian dinosaurs may have used feathers on their arms and tail to visually startle prey into fleeing, and subsequently utilized these feathers in maneuvers during pursuits of the fleeing prey. Results based on experiments using a robotic dinosaur and computer animations of dinosaur behavior show that insect prey is startled into fleeing more often and from farther distance when primitive small wing-like feathers were present at the end of forelimbs, especially when the feathers have contrasting color-patterns, and whe...

<p style="text-align:left">A new hypothesis proposes that non-avian dinosaurs may have used feathers on their arms and tail to visually startle prey into fleeing, and subsequently utilized these feathers in maneuvers during pursuits of the fleeing prey. Results based on experiments using a robotic dinosaur and computer animations of dinosaur behavior show that insect prey is startled into fleeing more often and from farther distance when primitive small wing-like feathers were present at the end of forelimbs, especially when the feathers have contrasting color-patterns, and whe...

Thanks to the popular cartoon, most folks associate roadrunners as icons of the desert, and while that is not untrue, the bird's range actually includes many other types of habitats from the coast of Southern California all the way to Northwest Louisiana, the western half of Arkansas and almost all of the northern half of Mexico.

These area birds are quick on their tiny feet.

Located in Tucson's tallest building, the hotel welcomes guests to the cultural hub of the city.