*****” For humans, it is almost impossible to tell when the female is fertile..............(so frequent matings would be necessary to ensure paternity”)**********
Try looking for PMS symptoms....... - then mating would only be necessary once a month for procreation......
•Symptoms start sometime after ovulation, which occurs about two weeks before the start of a period. Typically, symptoms occur during the five days before a period. However, some women have symptoms for two weeks or so leading up to a period. Typically, symptoms gradually get worse as the period approaches.
•Symptoms go within three to four days after your period starts.
•Symptoms that occur all the time are not due to PMS.
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http://www.patient.co.uk/health/Premenstrual-Syndrome.htm
Oh I don’t have to do all that book learning stuff to know. I check the calendar for the the last time I was in the dawg haus and figure it out from there.
Of course I am bad at math, have a bad memory and a short attention span. But there it is fun even if I don`t win the lottery.
Crabby then horney...repeat!
Sheesh!