Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.
Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, Moscow, Russia.
Bull Exp Biol Med. 2024 Aug;177(4):507-511. doi: 10.1007/s10517-024-06216-7. Epub 2024 Sep 12.
It has been found that the intraday dynamics of body temperature in small mammal and bird species on the adjacent day are similar. Therefore, by focusing on the body temperature dynamics of the previous day, it is possible to predict with a high degree of accuracy the periods of increase and decrease in body temperature for the current day. This phenomenon was observed when animals were kept under natural illumination and under artificial illumination when the phase of the intrinsic circadian rhythm shifted by 1-2 h every day. When analyzing this phenomenon in birds, it has been shown that the best match for body temperature dynamics occurs when comparing adjacent days based on sidereal days (a period of 23 h and 56 min). Over time, after several days, the daily patterns of body temperature fluctuation take on a completely different form and frequency. These facts suggest a connection between ultradian rhythms and the rotation of the Earth around its axis, and consequently, the position of animals on the surface of the planet relative to space objects.
已经发现，相邻日小型哺乳动物和鸟类的体温日内动态相似。因此，通过关注前一天的体温动态，有可能高度准确地预测当前日体温升高和降低的时期。当动物在自然光照和人工光照下，内在昼夜节律的相位每天提前 1-2 小时时，观察到了这种现象。在分析鸟类中的这种现象时，已经表明，当根据恒星日（23 小时 56 分钟的周期）比较相邻日的体温动态时，会出现最佳匹配。随着时间的推移，经过几天，体温波动的每日模式会呈现出完全不同的形式和频率。这些事实表明超日节律与地球绕其轴的旋转之间存在联系，因此，动物在行星表面相对于空间物体的位置也存在联系。
