Humans have been reported to exhibit phenotypic plasticity in sperm allocation depending on variation in socio-sexual situations.

What is an example of phenotypic plasticity in humans?

From a human health perspective, documented examples of plasticity most commonly include the results of exercise, training, and/or dieting on human morphology and physiology.

Do humans have adaptive plasticity?

Can adaptive plastic responses still evolve under these conditions? Yes. We use learning theory to describe how genetic changes accumulate when individual lifespan is shorter than the time between environmental changes, and show that adaptively plastic responses can evolve even when they are selected against.