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Why are female phalaropes more brightly colored than male phalaropes?
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coloration
The anole changes color in response to its stress level.
In the context of biology, female phalaropes are more brightly colored than males due to a reversal of traditional sex roles driven by sexual selection and parental investment.
In most species, females invest more in offspring and are therefore more selective, while males compete for mates. However, in phalaropes, the male provides the higher parental investment by performing all incubation and care of the young, while the female departs to seek additional mates. Because the males are the ones being selective, the females must compete for them. Consequently, female phalaropes have evolved to be larger, more aggressive, and more brightly colored to attract mates and defend territories.123