Image: Homologous Stuctures in Tetrapod Limbs
structures in the tetrapod limb, modified for various functions. Notice that the
various bones, which are tinted different colors, have been modified in
different ways to accomplish each type of locomotion (e.g., compare the
modifications of the bones for flight). From Audesirk/Audesirk, BIOLOGY: Life On Earth, 5/e, © 1999. Electronically reproduced by
permission of Pearson Education, Inc., Upper Saddle River, New Jersey. Figure 14-8.
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