Answer:
A visit to the Galapagos Islands in 1835 helped Darwin formulate his ideas on natural selection. He found several species of finch adapted to different environmental niches. The finches also differed in beak shape, food source, and how food was captured.
The very first Native Americans came over on the ice bridge near where the bering strait is from Asia and Africa. Many thousands of years ago.
<span>Since the Paleolithic Era was also known as the "Old Stone Age" this means that this humans primarily used stone for tools, although other materials such as wood were sometimes also used.</span>