On the other hand, are they reliably reproduced across wide genetic distances? Some species differentiate relatively little in just a few specific scenarios like behaviors related to reproduction (wolverines; for a more marked example, many fireflies). Some differ pretty much not at all (many sharks). Some are strongly differentiated from our own expressions of that difference (seahorses). Some have both high behavioral dimorphism and great deal of divergence from our own culturally-typical notions about that (spotted hyenas).
Basically, it’s not a very informative statement unto itself, when so many ideas about the specifics of ways in which gender and sex differ are coded to our own cultural ideas of how that works in humans.
Totally agreed, it just informs our prior about the existence of some sort of significant gender difference in humans.
Some species differentiate relatively little in just a few specific scenarios like behaviors related to reproduction (wolverines; for a more marked example, many fireflies).
Can you say more? (didn’t find anything with extremely casual searching)
In the case of wolverines, their lifestyles and behavioral regimens are not greatly-divergent except insofar as females dig nesting burrows and other behaviors directly relevant to giving birth. Otherwise, you’d be hard-pressed to tell them apart; low sexual dimorphism, low behavioral dimorphism by sex; the only really obvious thing is that wolverines try to avoid overlapping their ranges with members of the same sex.
Fireflies, similarly, don’t seem to be very distinct by sex until it’s time for a mating display; then they have ways of signalling it, but their lifestyles and behavioral cues, let alone anatomy, don’t differ much.
Basically, how much of a difference sex and gender make seems to be variable. Are there differences in size? Decoration? Behavior? Lifestyle? Energy expenditure on various aspects of those things? You can’t predict the answers to those questions from the commonly-held idea of “males have cheap, plentiful gametes; females have few, expensive gametes” (which doesn’t even reliably hold for all species, in addition to neglecting other salient factors like birthing method, social structure and other things that shape this without being directly determined by how they accomplish sex).
Incidentally, humans in our ancestral state (including modern subsistence foragers) tend to have very low body fat, which is the single biggest contributor to secondary-sexual dimorphism being so prominent in much of humanity today (nutrition and fat stores are probably why menarche occurs so early these days for many, and one factor contributing to comparatively high fertility). The popular perceptions of human sexual dimorphism may be distorted by this relatively recent context shift.
On the other hand, are they reliably reproduced across wide genetic distances? Some species differentiate relatively little in just a few specific scenarios like behaviors related to reproduction (wolverines; for a more marked example, many fireflies). Some differ pretty much not at all (many sharks). Some are strongly differentiated from our own expressions of that difference (seahorses). Some have both high behavioral dimorphism and great deal of divergence from our own culturally-typical notions about that (spotted hyenas).
Basically, it’s not a very informative statement unto itself, when so many ideas about the specifics of ways in which gender and sex differ are coded to our own cultural ideas of how that works in humans.
Totally agreed, it just informs our prior about the existence of some sort of significant gender difference in humans.
Can you say more? (didn’t find anything with extremely casual searching)
In the case of wolverines, their lifestyles and behavioral regimens are not greatly-divergent except insofar as females dig nesting burrows and other behaviors directly relevant to giving birth. Otherwise, you’d be hard-pressed to tell them apart; low sexual dimorphism, low behavioral dimorphism by sex; the only really obvious thing is that wolverines try to avoid overlapping their ranges with members of the same sex.
Fireflies, similarly, don’t seem to be very distinct by sex until it’s time for a mating display; then they have ways of signalling it, but their lifestyles and behavioral cues, let alone anatomy, don’t differ much.
Basically, how much of a difference sex and gender make seems to be variable. Are there differences in size? Decoration? Behavior? Lifestyle? Energy expenditure on various aspects of those things? You can’t predict the answers to those questions from the commonly-held idea of “males have cheap, plentiful gametes; females have few, expensive gametes” (which doesn’t even reliably hold for all species, in addition to neglecting other salient factors like birthing method, social structure and other things that shape this without being directly determined by how they accomplish sex).
Incidentally, humans in our ancestral state (including modern subsistence foragers) tend to have very low body fat, which is the single biggest contributor to secondary-sexual dimorphism being so prominent in much of humanity today (nutrition and fat stores are probably why menarche occurs so early these days for many, and one factor contributing to comparatively high fertility). The popular perceptions of human sexual dimorphism may be distorted by this relatively recent context shift.