Concept explainers
How does evolution account for (a) the similar mammalian forelimbs with different functions shown in Figure 19.16Q and (b) the similar forms of the two distantly related mammals shown in Figure 19.18Q?
Figure 19.16 Mammalian forelimbs: homologous structures.
Figure 19.18 Convergent evolution.
The ability to glide through the air evolved independently in these two distantly related mammals.
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