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Twin eggs have two yolks. In some twin eggs a thin partition of white
intervenes to prevent the yolks mixing with each other, but some twin eggs
are unprovided with such partition, and the yokes run into one another. There
are some hens that lay nothing but twin eggs, and in their case the
phenomenon regarding the yolks has been observed. For instance, a hen has
been known to lay eighteen eggs, and to hatch twins out of them all, except
those that were wind-eggs; the rest were fertile (though, by the way, one of
the twins is always bigger than the other), but the eighteenth was abnormal or
monstrous.
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4
Birds of the pigeon kind, such as the ringdove and the turtle-dove, lay two
eggs at a time; that is to say, they do so as a general rule, and they never lay
more than three. The pigeon, as has been said, lays at all seasons; the ring-
dove and the turtle-dove lay in the springtime, and they never lay more than
twice in the same season. The hen-bird lays the second pair of eggs when the
first pair happens to have been destroyed, for many of the hen-pigeons
destroy the first brood. The hen-pigeon, as has been said, occasionally lays
three eggs, but it never rears more than two chicks, and sometimes rears only
one; and the odd one is always a wind-egg.
Very few birds propagate within their first year. All birds, after once they
have begun laying, keep on having eggs, though in the case of some birds it is
difficult to detect the fact from the minute size of the creature.
The pigeon, as a rule, lays a male and a female egg, and generally lays the
male egg first; after laying it allows a day’s interval to ensue and then lays the
second egg. The male takes its turn of sitting during the daytime; the female
sits during the night. The first-laid egg is hatched and brought to birth within
twenty days; and the mother bird pecks a hole in the egg the day before she
hatches it out. The two parent birds brood for some time over the chicks in the
way in which they brooded previously over the eggs. In all connected with the
rearing of the young the female parent is more cross-tempered than the male,
as is the case with most animals after parturition. The hens lay as many as ten
times in the year; occasional instances have been known of their laying eleven
times, and in Egypt they actually lay twelve times. The pigeon, male and
female, couples within the year; in fact, it couples when only six months old.
Some assert that ringdoves and turtle-doves pair and procreate when only
three months old, and instance their superabundant numbers by way of proof
1100
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Buch The Complete Aristotle"
The Complete Aristotle
- Titel
- The Complete Aristotle
- Autor
- Aristotle
- Datum
- ~322 B.C.
- Sprache
- englisch
- Lizenz
- PD
- Abmessungen
- 21.0 x 29.7 cm
- Seiten
- 2328
- Schlagwörter
- Philosophy, Antique, Philosophie, Antike, Dialogues, Metaphysik, Metaphysics, Ideologie, Ideology, Englisch
- Kategorien
- Geisteswissenschaften
- International
Inhaltsverzeichnis
- Part 1; Logic (Organon) 3
- Categories 4
- On Interpretation 34
- Prior Analytics, Book I 56
- Prior Analytics, Book II 113
- Posterior Analytics, Book I 149
- Posterior Analytics, Book II 193
- Topics, Book I 218
- Topics, Book II 221
- Topics, Book III 237
- Topics, Book IV 248
- Topics, Book V 266
- Topics, Book VI 291
- Topics, Book VII 317
- Topics, Book VIII 326
- On Sophistical Refutations 348
- Part 2; Universal Physics 396
- Physics, Book I 397
- Physics, Book II 415
- Physics, Book III 432
- Physics, Book IV 449
- Physics, Book V 481
- Physics, Book VI 496
- Physics, Book VII 519
- Physics, Book VIII 533
- On the Heavens, Book I 570
- On the Heavens, Book II 599
- On the Heavens, Book III 624
- On the Heavens, Book IV 640
- On Generation and Corruption, Book I 651
- On Generation and Corruption, Book II 685
- Meteorology, Book I 707
- Meteorology, Book II 733
- Meteorology, Book III 760
- Meteorology, Book IV 773
- Part 3; Human Physics 795
- On the Soul, Book I 796
- On the Soul, Book II 815
- On the Soul, Book III 840
- On Sense and the Sensible 861
- On Memory and Reminiscence 889
- On Sleep and Sleeplessness 899
- On Dreams 909
- On Prophesying by Dreams 918
- On Longevity and the Shortness of Life 923
- On Youth, Old Age, Life and Death, and Respiration 929
- Part 4; Animal Physics 952
- The History of Animals, Book I 953
- The History of Animals, Book II translated 977
- The History of Animals, Book III 1000
- The History of Animals, Book IV 1029
- The History of Animals, Book V 1056
- The History of Animals, Book VI 1094
- The History of Animals, Book VII 1135
- The History of Animals, Book VIII 1150
- The History of Animals, Book IX 1186
- On the Parts of Animals, Book I 1234
- On the Parts of Animals, Book II 1249
- On the Parts of Animals, Book III 1281
- On the Parts of Animals, Book IV 1311
- On the Motion of Animals 1351
- On the Gait of Animals 1363
- On the Generation of Animals, Book I 1381
- On the Generation of Animals, Book II 1412
- On the Generation of Animals, Book III 1444
- On the Generation of Animals, Book IV 1469
- On the Generation of Animals, Book V 1496
- Part 5; Metaphysics 1516
- Part 6; Ethics and Politics 1748
- Nicomachean Ethics, Book I 1749
- Nicomachean Ethics, Book II 1766
- Nicomachean Ethics, Book III 1779
- Nicomachean Ethics, Book IV 1799
- Nicomachean Ethics, Book V 1817
- Nicomachean Ethics, Book VI 1836
- Nicomachean Ethics, Book VII 1851
- Nicomachean Ethics, Book VIII 1872
- Nicomachean Ethics, Book IX 1890
- Nicomachean Ethics, Book X 1907
- Politics, Book I 1925
- Politics, Book II 1943
- Politics, Book III 1970
- Politics, Book IV 1997
- Politics, Book V 2023
- Politics, Book VI 2053
- Politics, Book VII 2065
- Politics, Book VIII 2091
- The Athenian Constitution 2102
- Part 7; Aesthetic Writings 2156