Fact 1: Birds evolved from a group of bipedal dinosaurs called theropods.

Fact 2: Bird's feathers have evolved from reptile scales.

Given the two facts above, answer the question "what have evolved from reptile scales of bipedal dinosaurs called theropods" with the following options: 
- animals
 - fur
 - feathers
 - fur and fat
 - mammals
 - warm-blooded
 - hair
 - eyes


 

   feathers      