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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 when tail feathers of a large surface area were used during visual displays.</p>

Soult ukpyolsiSouth koreaUnited statesPiotr jablonskiKat avilaPiotrg jablonskiRon mummeNicholas strausfeldYuong nam leeJohn harold ostromSeoul national universityGordon research conference on neuroethologyInternational ornithological congressMethod of researchSociety for integrative biology annual meetingJurassic period