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> The bones of warm-blooded animals show uninterrupted fast growth, while the bones of cold-blooded animals have parallel growth lines showing interrupted growt
by _a_a_a_ 3y ago
> The bones of warm-blooded animals show uninterrupted fast growth, while the bones of cold-blooded animals have parallel growth lines showing interrupted growth corresponding to growth cycles, rather like the rings seen in tree trunks. Growth and metabolism rates are adjusted to suit the amount of food available, whereas warm-blooded animals require food to be available continuously. The Myotragus bones showed the same interrupted growth as reptiles.
Or the goat skeletons had regular periods of interrrupted food leading to regular harsh starvations which left patterns on the bones, maybe?
- CommitSyn 3y agoYes I'm sure the experts didn't think of the first idea to pop into both of our heads when they published their scientific paper in PNAS. https://www.pnas.org/doi/full/10.1073/pnas.0813385106 https://www.pnas.org/doi/full/10.1073/pnas.0813385106 However I'm more curious how a skeleton eats, can you elaborate?
- _a_a_a_ 3y agoOk, I did what I criticise others for doing, being the armchair critic. Taken on the chin. As for the goat skeleton, it eats when the goat eats, you know what I was saying.
- CommitSyn 3y ago> As for the goat skeleton, it eats when the goat eats, you know what I was saying. I'm not sure why, but this conversation reminded me of this old video. What a trip down (bizarro) memory lane. https://youtu.be/WQO-aOdJLiw https://youtu.be/WQO-aOdJLiw
- dang 3y agoPlease make your substantive points without being snarky. This is in the site guidelines: https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html.
- CommitSyn 3y agoI agree the snark was unnecessary, but in that moment I didn't have the time to think of a way to say that without it being perceived as worse than what I did playfully say. Anyway, wrist slap accepted. I will do better in the future. Edit: from that page, what's the meaning of the sentence "Edit out swipes."?
- dang 3y agoHN comments shouldn't contain swipes or putdowns, but of course those have a way of sneaking in to one's comments anyhow, so that guideline is asking people to re-read what they've posted and, if they notice a swipe, to edit it out.