...It is probable that, but for powder and shot, thedomestic goose of Europe, by occasionally takingto a feral life in thinly-settled countries, wouldere this have become widely distributed over theearth... 
W. H. Hudson 「Birds and Man」
...Smith says that the feral dogs are very large, like greyhounds, of a uniform pale blue-ash, with small ears, and large light-brown eyes...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...From the several foregoing facts we see that reversion in the feral state gives no indication of the colour or size of the aboriginal parent-species...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The conditions of life in Paraguay appear not to be highly favourable to the cat, for, though they have run half-wild, they do not become thoroughly feral, like so many other European animals...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...In New Zealand, according to Dieffenbach, the feral cats assume a streaky grey colour like that of wild cats; and this is the case with the half-wild cats of the Scotch Highlands...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The domestic rabbit readily becomes feral in these same countries, and when variously coloured kinds are turned out they generally revert to the ordinary grey colour...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The rabbits which have become feral on the island of Porto Santo, near Madeira, deserve a fuller account...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...In the small feral P...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...In the Porto Santo feral rabbits the supra-orbital plates are generally narrower and more pointed than in our wild rabbits...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Another and rather more distinct form is either truly wild or has become feral on the cliffs of England, and was doubtfully named by Mr...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...So much variability raises a strong suspicion that these birds are domestic pigeons which have become feral...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The guinea-fowl has become thoroughly feral in Jamaica and in St...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...In the Falkland Islands, where the horse has been feral only between 60 and 70 years, I was told that roans and iron-greys were the prevalent colours...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Azara quotes Buffon for the feral cattle of Africa...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...This is the only known case in which rabbits have become feral in a hot country...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
... With respect to feral pigeons—for Juan Fernandez, see Bertero in 'Annal...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Those found in the Pellew Islands (Crawfurd) are believed to be feral; and lastly, it is asserted that they have become feral in New Zealand, but whether this is correct I know not...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Rock Pigeons of the same type, however, are found inmany other parts of the Old World and, whether wild or feral, areplainly all from the same original stock...
John H. Robinson 「Our Domestic Birds」
...A contrast to the feral dog of St...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
ランダム例文：
便利！手書き漢字入力検索
この漢字は何でしょう？？
時事ニュース漢字 📺