1.   Anthropologists can trace the evolution of plants and animals by examining fossils.

2.   But the task of this chapter, of tracing the evolution of learning and memory-like phenomena in non-human animals, is done.

3.   The result is deeply layered, complex works tracing that evolution in its historical perspective.

4.   Desmond Morris claims that his biomorphs evolve in his mind, and that their evolution can be traced through successive paintings.

5.   And cultural history, as Barzun thinks of it, traces the evolution of that fabric through time.

6.   Another room is lined with models that trace the evolution of his design for Disney Hall.

7.   At Boston College this month, a series of enormous canvases by painters known collectively as the Bogside Artists will trace the evolution of the Troubles.

8.   Displays tracing the evolution of household items, from vacuums to microwaves.

9.   For it is a unique song collection that traces the evolution of Celtic music on the American frontier.

10.   Gerard found it difficult to trace the evolution.