From finches to chameleons: The surprising reason why male animals are more colourful than females
Published on: Dec. 3, 2025, 7 a.m. | Source: Times of India
The natural world has numerous animals, be it birds that grace the sky, fishes that trifle through water, or animals that walk and race on land. But have you ever noticed that the males of most of these creatures are more colourful than the females? Well, though bizarre, it is true. In the natural world, male animals often stand out with their dazzling colours and unique patterns, capturing attention wherever they go. From the bright feathers of peacocks to the vibrant scales of tropical fish, these vivid displays are more than just beautiful, they play a crucial role in the animal kingdom.Animals like the male house finch, red-winged blackbird, mandrill, and Jackson’s chameleon all use their bright colours to tell important biological stories. But why is it that males tend to be more colourful than females? The answer lies mainly in sexual selection, a concept introduced by Charles Darwin to explain traits that give an individual an advantage in reproduction, distinct from natural selection which focuses on survival advantages. Male animals often develop bright colours and striking physical features to outcompete other males and attract females.Here are some reasons why most male animals are more colourful than the femalesDisclaimer: This article is based on widely accepted scientific theories, including Charles Darwin’s work on natural and sexual selection. These concepts are presented in a simplified manner for easier understanding, and variations may occur across different species.
