Went for a walk with my new girlfriend and we saw dogs mating, she said ‘how does the male know when the female is ready for sex ? I replied he can smell she is ready that is how nature works. We then walked past a sheep field and the ram was mating the ewe, again my girlfreind asked how the ram knew when the ewe was ready for sex ? I replied 'it’s nature he can smell she is ready'. We then went past a cow-field and the bull was mating the cow; my girlfriend said this is odd they are all at it, surely the bull can’t smell when she is ready. I said look it’s nature, all animals can smell when the female is ready for sex. Anyway, after the walk I dropped her home and kissed her goodbye, she said 'take care and get yourself checked for Covid-19.' Surprised, I asked her why she feels that way ? She said, “I think you seem to have lost your sense of smell”.