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Intense competition often leads to delayed maturation in the competing sex.
: Many marine species change sex during their lifetime.
Differences in maturity age can lead to skewed sex ratios on spawning grounds; if one sex matures later, fewer individuals survive the return migration. 4. Human Development and Invariance
: In many species, intense competition for mates can lead to delayed maturation in the sex facing higher selection pressure. For example, in some bird populations, males mature later than females to reach a size or social status necessary for successful competition.
: Individuals mature first as males and later change into females.
Some organisms do not have fixed sexes throughout their lives, leading to complex maturation patterns.
