Supposing that, in ordinary years, the increased constitutional vigour of the hybrids exactly counterbalances their imperfect adaptations to conditions, there will be in the second generation, besides these three classes, hybrids of the second degree between the first hybrids and Af and Bf respectively. In succeeding generations there will be hybrids of all degrees, varying between the first hybrids and the almost pure types of Af and Bf.英文原著 · 《More Letters of Charles Darwin Volume I》
The subject of hybridisation is dealt with in another part of this essay. It is enough to refer here to the most important fact, that as the result of combinations of characters of different species new and constant forms are produced. Further, Tschermack, Bateson and others have demonstrated the possibility that hitherto unknown inheritable characters may be produced by hybridisation.英文原著 · 《Darwin and Modern Science》
The result is that in this area hybrids will not increase so rapidly as before; and as by the terms of the problem the two pure forms are better suited to the conditions of life than the hybrids, they will tend to supplant the latter altogether whenever the struggle for existence becomes severe.英文原著 · 《More Letters of Charles Darwin Volume I》
It might be argued that in the case of heterogeneous hybridisation the sperm-nucleus does not fuse with the egg-nucleus, and that, therefore, the spermatozoon cannot transmit its hereditary substances to the larvae. But these objections are refuted by Godlewski's experiments, in which he showed definitely that if the egg of the sea-urchin is fertilised with the sperm of a crinoid the fusion of the egg-nucleus and sperm-nucleus takes place in the normal way. It remains for further experiments to decide what the character of the adult hybrids would be.英文原著 · 《Darwin and Modern Science》
Loew (E. Loew, "Bemerkungen zu Burck...", "Biolog. Centralbl." XXVI. (1906).) has shown that cases occur in which cross-fertilisation may be effected even in these "cleistopetalous" flowers: humming birds visit the permanently closed flowers of certain species of Nidularium and transport the pollen. The fact that the formation of hybrids may occur as the result of this shows that pollination may be accomplished.英文原著 · 《Darwin and Modern Science》
in Ipomoea, agree with those which are often noticed in hybrids; Darwin himself drew attention to this.英文原著 · 《Darwin and Modern Science》
Let's go before one of these rabid cats bites us and we become half-human, half-cat hybrids美剧 · 《2 Broke Girls》
L's about these fierce mutated female Amazonian warriors as the sole future world-inhabiting species battling cloned prehistoric cavemen hybrids.电影 · 《In a World (2013)》