New and Used American Eagle RVs For Sale. Current American Eagle inventory - find local, new and used listings from private RV owners and dealers. American Coach American Eagle (79)
Definition of evolve for English Language Learners. : to change or develop slowly often into a better, more complex, or more advanced state : to develop by a process of evolution.
Definition of adaptation. 1 : something that is adapted a new adaptation of an old recipe; specifically : a composition rewritten into a new form a screen adaptation of a novel. 2 : the act or process of adapting a process undergoing adaptation : the state of being adapted adaptation to changing circumstances.