Sentences with phrase «elaborate tail feathers»
The need to pass genes to future generations is so critical that in some species, males put a lot of energy into generating these sex - specific features — a peacock's elaborate tail feathers or an elephant seal's massive, territory - defending body size, for example.
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The canonical example of sexual selection, the male peacock (in this image, an Indian blue peacock) is renowned for its iridescent blue - green plumage, elaborate feather train, and iconic «eyes,» the colorful markings on its tail feathers.