Simplify the following text for a Grade 9 native English-speaking person.
Original: It seems that this occurred because the color of the fur of the mole can itself exhibit a wide range of shades , from gray through yellowish , brownish , and even purplish .
Simplified: It seems that this occurred because the color of the fur of the mole can itself be a wide range of shades , from gray through yellowish , brownish , and even purplish .