What is the homologous structure of a bear?

The homologous structures of a bear include its forelimbs, which share a common evolutionary origin with the forelimbs of other mammals, such as humans and whales. Despite differences in function—like walking, swimming, or grasping—these limbs have similar bone structures, including the humerus, radius, and ulna. This similarity reflects the shared ancestry of these species, illustrating the concept of homologous structures in evolutionary Biology.