Wait, what do you mean by "the whole system shutting down"? Because if the testes are just shrinking in size, that doesn't necessarily mean the function is gone—some animals can regrow them when the...
You're missing the point—shrinkage isn't just size, it's functional regression. The testes don't just get smaller, they become non-functional until the season changes. It's not a pause, it's a full reset.
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