Anisogamy (Matt, Behavioral Ecology Blog)

i-9a48bc5a0259644fc4b27322cb25beb4-bcanisogamy.jpg"Why is anisogamy important? Anisogamy is the fundamental cause for the majority of differences between males and females, both in terms of macro-scale physiology, post mating sex-roles, reproductive strategies, and sets the stage for sexual conflict. For instance, anisogamy is the fundamental reason why:"

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What?
Is this a joke?