And we grant all this, accompanying the permission with strict orders to prevent any embryo which may come into being from seeing the light; and if any force a way to the birth, the parents must understand that the offspring of such an union cannot be maintained, and arrange accordingly.
The proper officers will take the offspring of the good parents to the pen or fold, and there they will deposit them with certain nurses who dwell in a separate quarter; but the offspring of the inferior, or of the better when they chance to be deformed, will be put away in some mysterious, unknown place, as they should be.
A much more important rule, which I think may be trusted, is that, at whatever period of life a peculiarity first appears, it tends to appear in the offspring at a corresponding age, though sometimes earlier.
This point, if it could be cleared up, would be interesting; if, for instance, it could be shown that the greyhound, bloodhound, terrier, spaniel, and bull-dog, which we all know propagate their kind so truly, were the offspring of any single species, then such facts would have great weight in making us doubt about the immutability of the many very closely allied and natural species--for instance, of the many foxes--inhabiting different quarters of the world.
The offspring from the first cross between two pure breeds is tolerably and sometimes (as I have found with pigeons) extremely uniform, and everything seems simple enough; but when these mongrels are crossed one with another for several generations, hardly two of them will be alike, and then the extreme difficulty, or rather utter hopelessness, of the task becomes apparent.
has sometimes resulted from a slightly Irregular Triangle; but in almost every such case the Irregularity of the first generation is visited on the third; which either fails to attain the Pentagonal rank, or relapses to the Triangular.] Such a birth requires, as its antecedents, not only a series of carefully arranged intermarriages, but also a long, continued exercise of frugality and self-control on the part of the would-be ancestors of the coming Equilateral, and a patient, systematic, and continuous development of the Isosceles intellect through many generations.
They were not wanted, as their offspring
might inherit and transmit the tendency to prolonged incubation, and thus upset the system which has maintained for ages and which permits the adult Martians to figure the proper time for return to the incubators, almost to an hour.
His father had married without the pale of the church to which he belonged, and had, in this manner, forfeited some of the privileges of his offspring
. Still, as young Marmaduke was educated in a colony and society where even the ordinary intercourse between friends was tinctured with the aspect of this mild religion, his habits and language were some what marked by its peculiarities.
Genetic factors transmitted by mothers to their offspring
seem like an obvious explanation behind this phenomenon, but so far no genes have been identified that could explain the maternal transmission of Alzheimer's disease.
To better understand the unique relationship between maternal Alzheimer's disease and risk in her offspring
, Dr Pratico and colleagues looked at maternal fat intake specifically during the gestation period in mice engineered to develop Alzheimer's disease.
The killing of rivals offspring
represents a violent manifestation of competition, and a significant source of offspring
mortality in some mammalian populations.
'Old'sperm produces healthier offspring
, according to a new study.