A species of a large brown bear lived in Siberia about a million years ago.  Over time, the northern population became white-colored and acquired heavier fur as it blended into the snowy landscape. The southern population acquired lighter, darker-colored fur as it adapted to forest ecosystems.  Eventually, they could no longer reproduce with each other.  Which of these terms describes this transition?

A. speciation
B. coincidence
C. transmogrification
D. providence


Answer: A

Environmental & Atmospheric Sciences

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