Probably not an earth-shattering discovery, but this new species is found in a curled position that supposedly matches those of sleeping birds.

I can’t find any link tying the pop science report to any sort of journal entry.

https://www.japantimes.co.jp/news/2023/11/17/japan/history/new-dinosaur-discovered-mongolia/?fbclid=iwar0iwx3lufxdqvtujxliiuykg4pwqfsbavsc6t9h0rc2dj_cwcdqgqcti-c

On 11/21/23 10:53 PM, Sight Reader wrote:
> Probably not an earth-shattering discovery, but this new species is found in a curled position that supposedly matches those of sleeping birds.
>
> I can’t find any link tying the pop science report to any sort of journal entry.
>
> https://www.japantimes.co.jp/news/2023/11/17/japan/history/new-dinosaur-discovered-mongolia/?fbclid=iwar0iwx3lufxdqvtujxliiuykg4pwqfsbavsc6t9h0rc2dj_cwcdqgqcti-c

Here's the original:

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0293801

You can judge for yourself whether this is a typical avian sleeping
position, which is on the stomach with the head resting on the back.
This seems as much mammalian as anything, just curled up head to tail.

On 11/22/23 8:35 AM, erik simpson wrote:
> On Wednesday, November 22, 2023 at 6:17:41 AM UTC-8, John Harshman wrote:
>> On 11/21/23 10:53 PM, Sight Reader wrote:
>>> Probably not an earth-shattering discovery, but this new species is found in a curled position that supposedly matches those of sleeping birds.
>>>
>>> I can’t find any link tying the pop science report to any sort of journal entry.
>>>
>>> https://www.japantimes.co.jp/news/2023/11/17/japan/history/new-dinosaur-discovered-mongolia/?fbclid=iwar0iwx3lufxdqvtujxliiuykg4pwqfsbavsc6t9h0rc2dj_cwcdqgqcti-c
>> Here's the original:
>>
>> https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0293801
>>
>> You can judge for yourself whether this is a typical avian sleeping
>> position, which is on the stomach with the head resting on the back.
>> This seems as much mammalian as anything, just curled up head to tail.
> Being weak on anatomy, I have a hard time seeing what kind of "curled up"
> sleeping position is exhibited here.

Well, the head is turned to face backwards, and the cervical vertebrae,
to the extent they are preserved in anything resembling a life position,
match that. The tail is curved in more or less the same way, though I
wonder even more whether that would match any sort of life position.
Then again, this is harder to tell from photos than from examination of
the actual specimen, so I suppose we have to give the authors some
credit. They say "This posture is identical to the ‘tuck-in’ sleeping
posture seen in troodontids [38–41,73] and potentially oviraptorids
[74–76]."