Dinosaurs might have used feathers on forelim
<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...
Source: eurekalert.org