...) thought that a female had three or four litters each year...
E. Raymond Hall 「A Synopsis of the North American Lagomorpha」
...When it is taken into consideration that the litters are large; thatthey eat cheap food; their growth is rapid and that the pelt is extra...
A. R. Harding 「Fur Farming」
...Very beautiful brown tabbies are also to be found among the litters ofthe female tortoiseshell, allied with a dark-brown tabby with narrowblack bars...
Harrison Weir 「Our Cats and All About Them」
...These creatureshave litters that are much stronger and healthier than those which aremore tenderly guarded...
Dinks, Mayhew, and Hutchinson 「The Dog」
...When entire litters are lost at anearly age, to predation, or other causes, productivity is muchincreased, with perhaps only short intervals between pregnancies...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...One hundred and fifteen small young of 14 different litters weremarked while still attached to the mother's teats in the pouches...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...Hartman (1928:154) stated that there were at least two litters ofyoung per year in the southern states with a small percentageof unusually fecund females producing a third litter...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...Second litters are usually born in early June...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...On July 5, 1952, two females last taken on May 19and May 20, with their pouches recently vacated by first litters, werefound to have young the size of half-grown mice, evidently two tothree weeks old...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...He states that an average litter consists of about 21eggs, but mentions much larger litters of up to as many as 56...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...Some of the females examined probablyhad already lost parts of their litters...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...truei nurse forabout one month, although some litters may not be weaned until 40 days ofage...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...84,in 19 litters...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Nevertheless,solitary individuals and individuals from litters all reach essentially the samesize 50 days after birth...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Although the data in do not cover the full developmentaltime of the litters involved, it is obvious that both lactating females of P...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Why, sir, for the first time since our acquaintance began, you have been playing the tempter, and nearly won, what with your litters and palanquins and ponies...
George Manville Fenn 「Dead Man's Land」
...I have nodoubt there were a dozen litters of kittens on that two miles ofridge; but the cover was so dense that nothing smaller than a deercould be seen moving...
William J Long 「Wilderness Ways」
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