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and sheep, in a long cold winter pregnant sheep will keep hold of their young and pregnancy times will increase. when the rains come, and hence higher temperatures, lambing starts!Im not usually one for old wives tales, but some do seem to ring true.
Hi PaulThis last part is not, I don't think, about prediction, but based on current weather conditions. I'm sure that the pregnancy period can fluctuate in accordance with the duration of cold weather, and that favourable conditions promote birthing. But I do not believe that this is due to "prediction" - rather a response to recent events....
I think that what needs to be defined is the "prediction" period. I would be very happy to accept the premise that spiders may somehow be able to be receptive to changes in atmoshperic pressure, and as a result build thicker webs, in the same way that dogs can "predict" thunderstorms or other animals, earthquakes. So, over say a 6 to 12 hour period, then I think that this may hold. However, to use spiders or anything else as a predictor of long-range forecasts is without scientific foundation. Of course, I'm open to new information though!