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| Description: (A) Long legs are a homologous trait as indicated in red; both long-legged species share a long-legged common ancestor. (B) Long tails are an analogous trait as indicated in blue; long tails evolved separately in the two long-tailed lineages, and their common ancestor presumably had a short tail. Picture Stats: Views: 5163 Filesize: 148.4kB Height: 679 Width: 1350 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=5299 |