Key Idea.
Section 1
Solving the Mystery
We can finally classify the Maiacetus fossil.
Although it has legs like a wolf, its skeleton tells a different story. It possesses the unique "involucrum" (a thick ear bone). This structure is diagnostic—it is found only in whales.
Section 2
The Transitional Form
The evidence tells a clear evolutionary story:
Book overview
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Expand to review the lesson summary and core properties.
Section 1
Solving the Mystery
We can finally classify the Maiacetus fossil.
Although it has legs like a wolf, its skeleton tells a different story. It possesses the unique "involucrum" (a thick ear bone). This structure is diagnostic—it is found only in whales.
Section 2
The Transitional Form
The evidence tells a clear evolutionary story:
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter