8. Many scientists believe that at one point in history, the polar bear was a close relative of the brown bear and fossil samples show the connection. Over time, the species spread out into
different areas and became two entirely different species. Which is the most likely explanation
for this phenomenon?
A Polar bears were geographically isolated and over time their color has adapted to fit their
surroundings
B Polar bears color was caused by a genetic mutation and in order to survive the bears had to
migrate north
C Brown bears color was caused by a genetic mutation and in order to survive the bears had to
migrate south
D The similarities between the bears is an example of convergent evolution