...After reading the preceding notes one might ask, If there is so muchthat is defective and irregular in the reproductive instinct of M... 
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...Identify the reproductive organs or gonads of the hydra...
Worrallo Whitney 「A Guide for the Study of Animals」
...Egg cell, the large, non-motile reproductive cell, with which a sperm cellfuses...
Worrallo Whitney 「A Guide for the Study of Animals」
...7 mm) hairless juvenile; and, finally, one of six femalesnetted at Santa Rosa on 13 July was pregnant (embryo 23 mm), but theothers evinced no reproductive activity...
J. Knox Jones 「Noteworthy Records of Bats From Nicaragua, with a Checklist of the Chiropteran Fauna of the Country」
...One by fission, or division of their bodies: another bybuds, somewhat analogous to those of plants; and anotherby reproductive germs...
Henry J. Slack 「Marvels of Pond-life」
...In order to determine the reproductive potential of the six species, ovulatedeggs were removed from females and counted...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...But it is a most improbable hypothesis that the mere blood of one individual should affect the reproductive organs of another individual in such a manner as to modify the subsequent offspring...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The vesicle which acts as heart and stomach serves also asthe reproductive cavity, but how or by what means it is fecundatedwould be difficult to determine...
Ambrose Blacklock 「A Treatise on Sheep:」
...Capons have ever been esteemed among the greatest delicacies of thetable; and are made by the extirpation of the reproductive organs inmale fowls...
Robert Jennings 「Sheep, Swine, and Poultry」
...Such regulators, or environmental oscillators, are the"phasing factors" of the physiologic clock that dictate the temporaloccurrence of primary reproductive activity...
Richard F. Johnston 「The Breeding Birds of Kansas」
...The three adults in the collection here reported on were in nearly full reproductive activity...
Erwin E. Klaas 「Summer Birds From the Yucatan Peninsula」
...Accessory glands: any glands opening into the ducts ofthe reproductive system...
John. B. Smith 「Explanation of Terms Used in Entomology」
...The queen's brain turns to pulp, that the reproductive organs may profit; in the workers these organs atrophy, to the benefit of their intelligence...
Maurice Maeterlinck 「The Life of the Bee」
...My first investigations, therefore, which concerned the reproductive apparatus as a whole, might very well have allowed it to pass unperceived...
J. Henri Fabre 「Bramble-bees and Others」
...As a minimum, thehead, flippers, and reproductive tract should be preserved...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Some females born early inthe reproductive season breed in their first summer or autumn...
Sydney Anderson 「Mammals of Mesa Verde National Park, Colorado」
...In at least one place reproductive isolation between ornatus and theinvading S...
James S. Findley 「Speciation of the Wandering Shrew」
...So far as I know, monticola is not in reproductive continuity with anyother subspecies of Sorex vagrans...
James S. Findley 「Speciation of the Wandering Shrew」
...maniculatus did not show reproductive activity...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Captive pairs of both species yielded no evidence of reproductive activity untilJanuary when, as mentioned earlier, some of the males had scrotal testes...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
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