As the human race exerts greater influence on the Earth, our preferences may play a greater role in determining which other species survive, say scientists. New research shows that, in some cases, these preferences may be influenced by subtle factors such as small colour highlights. In the case of penguins, the species most popular with humans appear to be the ones displaying markings of warm colors such as red, orange or intense yellow, said a conservation biologist. The more popular a species is, the more likely it will garner human support for its survival.

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