Homologous structures demonstrate shared ancestry and support the theory of evolution through anatomical similarities.
Homologous structures are anatomical features shared by different species that point to a common evolutionary origin. For example, the forelimbs of mammals like humans, horses, dolphins, and bats exhibit the same basic bone structure despite serving different functions, indicating a shared ancestry.
These anatomical similarities provide evidence for the theory of evolution by demonstrating descent from a common ancestor. Vestigial structures, such as pelvic bones in snakes and remnants of leg bones in whales, further support evolutionary principles by showcasing structures that have lost their original function over time.
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