In the North Pacific Ocean, Two Groups of the Same

In the North Pacific Ocean, two groups of the same species of killer whales (Orcinus orca) appear to be forming two different species based on what they eat. One group eats fish and the other eats mammals such as seals. Scientists can tell what they eat based on their teeth, because whales that feed on fish have significantly different wear patterns.
-Which of the following describes the type of speciation event that is occurring in these whales?

A) sympatric speciation
B) allopatric speciation
C) geographic speciation
D) punctuated speciation

Correct Answer:

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