Birds evolved from a group of bipedal dinosaurs called theropods, and dromaeosaurs are part of the theropod group of dinosaurs. Given these facts, what did birds evolve from among the following options:
- chickens
 - insects
 - fur and fat
 - dromaeosaurs
 - beaks
 - feathers
 - animals
 - warm-blooded


 

    dromaeosaurs     