The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
In the case of the deer, yes, all of the females go through estrace at the same time. So it's easier for the bucks to say for these nine months. Great point. I don't need testosterone because all of the doese's are infertile. And then bingo, now they're going through S trace. We're going to go through the rut and it's a party.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
Most animals keep it low and only raise it when females are fertile and they need to compete.
So that's the rut. Like we're animals like like the red deer, you know, grow their their testicles grow. They grow weapons on their head. They become horny. They become aggressive when the females are fertile. If the females aren't fertile, all that stuff goes away. Testosterone drops.