...The chiefgeographical races of this abundant species are indicatedbelow, although in regions where the forms overlap manyintermediate hybrids occur...
Clarence M. Weed 「Butterflies Worth Knowing」
...McGibbon (1945) was able to distinguish thered cells of interspecific hybrids in ducks by similar methods...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Immunogenetic studies of species and of species hybrids in doves, and the separation of species-specific substances in the backcross...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Further division of contrasting antigens in species hybrids in ducks...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
..." In Hungary, Jeitteles was assured on trustworthy authority that a wild male cat crossed with a female domestic cat, and that the hybrids long lived in a domesticated state...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...caffra; he has seen a pair of hybrids which were quite tame and particularly attached to the lady who brought them up; and Mr...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Blyth that at Hansi hybrids between the common cat and F...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Out of 500 eggs, raised from various first crosses and hybrids, between G...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Two hybrids, a male and female, thus produced, were found by Mr...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
... First, that the parent-trees have been in every case hybrids between the peach and nectarine, and have reverted by bud-variation or by seed to one of their pure parent-forms...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...For the feral hybrids of the common and musk-ducks, see Audubon's 'American Ornithology,' and Selys-Longchamp's 'Hybrides dans la Famille des Anatides...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Temminck also found the hybrids from these two species quite barren...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...101) asserts that the hybrids from these two turtle-doves propagate inter se equally well with pure species, and when a writer in the 'Field' newspaper (in a letter dated Nov...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Two of the latter male hybrids paired with their pure parents, viz...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Among other domestic birds hybrids are almostunknown...
John H. Robinson 「Our Domestic Birds」
...The last class will give a place to Manx, six-toed cats, wild cats, and hybrids, as well as any curious foreign pussy that may be forthcoming...
Gordon Stables 「The Domestic Cat」
...We think that the hybrids reported here (excepting G...
Frank B. Cross 「Five Natural Hybrid Combinations in Minnows (Cyprinidae)」
...Streams from which we report hybrids probably were affectedby overgrazing of their watersheds; overgrazing was unusuallysevere in the drought...
Frank B. Cross 「Five Natural Hybrid Combinations in Minnows (Cyprinidae)」
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