<p><strong>SF Fig. 1.6.</strong>&nbsp;(<strong>B</strong>) Lamarck proposed that individuals could acquire traits through will, such as a giraffe stretching its neck over time.</p>

SF Fig. 1.6. (B) Lamarck proposed that individuals could acquire traits through will, such as a giraffe stretching its neck over time.

Image courtesy of Dan Lundburg, Wikimedia Commons