Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many ...

All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it. (Donald Johanson)

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Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.

Donald Johanson Quotes: All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.