...However, retention of spermatozoa and delayed fertilization indicate that copulation is not a stimulus for ovulation... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Reiterated copulation does not appear to produce abortion inthe sow; at least to the extent it does in other animals...
Robert Jennings 「Sheep, Swine, and Poultry」
...But why has nature prohibited copulation within the hives? This is asecret still unknown to us...
Francis Huber Anonymous 「New observations on the natural history of bees」
...I may repeat, however, that there was not the leastvariation in the principle, and that whenever the copulation of queenswas postponed beyond the twenty-first day, the eggs of males only wereproduced...
Francis Huber Anonymous 「New observations on the natural history of bees」
...This canaltherefore can extend during copulation, and allow the lenticularsubstance to protrude out of the body of the males...
Francis Huber Anonymous 「New observations on the natural history of bees」
...close to the lentil,and at the same place where it breaks in copulation...
Francis Huber Anonymous 「New observations on the natural history of bees」
...
Our observations incontestibly prove copulation...
Francis Huber Anonymous 「New observations on the natural history of bees」
...We then confined her, and the eggs she afterwards laidproved that the second copulation had been more successful than thefirst and that there are some males more fit for impregnating queensthan others...
Francis Huber Anonymous 「New observations on the natural history of bees」
...We readily conceivehow they appear when left in the female by copulation...
Francis Huber Anonymous 「New observations on the natural history of bees」
..., while watching a pair of these new arrivals, I recorded my only observation of copulation in the Seaside Sparrow...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...caudacutais promiscuous, relations between the sexes being limited to copulation...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...carolinato be noticeably weakened after copulation, causing the malesto remain inactive for several hours...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...The copulation of two coalescing cells, which in these casesoften precedes the reproduction, cannot be regarded as a sexual act unless thetwo copulating plastids differ in size or structure...
Ernst Haeckel 「The Evolution of Man」
...For this copulation ofthe two sexual nuclei (Figs...
Ernst Haeckel 「The Evolution of Man」
...They are found in the womb of the rabbit, the dog, and other smallmammals, a few days after copulation...
Ernst Haeckel 「The Evolution of Man」
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