...In the case of somespecies the whole yearly cycle has been adapted to correspondto the yearly history of the cruciferous food plant... 
Clarence M. Weed 「Butterflies Worth Knowing」
...The yearly cycle in southern New Hampshire may betaken as an illustration of the life of the species in regionswhere there is but one brood...
Clarence M. Weed 「Butterflies Worth Knowing」
...A complete cycle was recorded in ten instances in a period of 19 to 23 days and in two instances in 32 days...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...If data for a large number of females were arranged as are those in Table 8, they might reveal whether the breeding cycle is annual or biennial...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Since optimal temperatures determine activity, the diel cycle varies greatly from time to time...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...An annual cycle may occur in areas where temperature permits year-round activity...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Then come the short but pleasant days of autumn, the retreat undergroundand the winter torpor, the awakening of spring, and finally the cycle isclosed by the festival of pellet-making...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
... Once the two sexes had appeared, I expected a third generation that would spend the winter in the larval state and recommence in May the annual cycle which I have just described...
J. Henri Fabre 「Bramble-bees and Others」
...For such a distinct and regular feature in the life cycle of thespecies as the retrograde autumnal movement there must be somebiological explanation...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...maritimais monogamous, the pair-bond being maintained throughout a breeding cycle...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...In most instances theorifice was not indicative of actual oestrus, as it persisted throughthe preceding and following stages of an oestrus cycle...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...Of the hindfeet, the medial surfaces are the principal parts that touch theground but some traction is derived from the hind claws at the beginningof each cycle of the hind leg...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...The time in which egg-clusters are deposited is a good roughindex to events in the breeding cycle...
Richard F. Johnston 「Natural History of the Salamander, Aneides hardii」
...Now anoctennial cycle is the shortest period at the end of which sun andmoon really mark time together after overlapping, so to say,throughout the whole of the interval...
Sir James George Frazer 「The Golden Bough」
...Carabao are kept and used as food (), but in the cycle proper no mention is made of using them as work animals...
Fay-Cooper Cole 「Traditions of the Tinguian: A Study in Philippine Folk-Lore」
...
This story does not belong to the cycle...
Fay-Cooper Cole 「Traditions of the Tinguian: A Study in Philippine Folk-Lore」
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