It is due to their ability to adapt in the varying circumstances
Explanation:
Dickinson protested that he meant only that Philemon should not keep money in the field, but in the political upheaval of 1776 and 1777, the fiercely independent Dickinson was left with few allies who could help him salvage his reputation.
They migrated by boat and crossed the land bridge that formed across the Bering straights during the ice age when ocean levels fell. so they could discover a <span>new world and new land.</span>
Advanced Research Projects Agency Network- a U.S. department of defense (DOD)