Pssst all categories, including ones used by scientists, are made-up "constructs" defined by the intentions of the people categorizinghttps://twitter.com/gogreen18/status/883906090781384704 …
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We all know that the "male" seahorse provides the smaller gametes but then gestated the fertilized eggs inside itself
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Or that male emperor penguins hatch broods of eggs while the females that laid the eggs roam to forage for food
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My favorite example is the anglerfish, in many species of which the male attaches to the female and then withers away to just gonads.
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Female clownfish are bigger and males can turn into females if there aren't any females around
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If males can turn into females, then both males and females must exist, otherwise they could not change from one to the other.
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1. There's a big difference between arguing against generalizations re sex roles, functions and arguing that sex doesn't exist at all.
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2. Of course it's not universal, but why do so many different kinds of mammals have two testicles? Why not one or six, for that matter?
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