...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」
...As far south as southern Canada there is a slight variationin this yearly cycle...
Clarence M. Weed 「Butterflies Worth Knowing」
...To trace the yearly cycle of this butterfly's life, let usbegin with one of the mother insects flitting along a streamin early summer...
Clarence M. Weed 「Butterflies Worth Knowing」
...The fang-shedding cycle was found to be highly irregular, with a double condition (on one or both sides) occurring one-third of the time...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The reproductive cycle of the prairie rattler...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The annual reproductive cycle of the California gull...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...It may be likened to thenoise made by a motor cycle when it is being started...
Douglas Dewar 「A Bird Calendar for Northern India」
...At the closeof the year the latest brood of these bring forth young, which developinto males and egg-laying females; thus the yearly cycle is completed...
Geo. H. Carpenter 「The Life-Story of Insects」
...Notwithstanding the albuminous regimen, the cycle of the evolution is achieved without impediment...
J. Henri Fabre 「More Hunting Wasps」
...maritimais monogamous, the pair-bond being maintained throughout a breeding cycle...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...truei, the weight of the testes is reportedto rise in March and diminish through September, with accessory organsfollowing the same cycle (Asdell, 1964:267)...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Decreasein size in early June is correlated with the end of the periodof most active mating; maximal size is coincident with the peak ofthe spermatogenic cycle in early September...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...A correspondent, writing to me from one of thecolleges, suggests that our spring really begins inDecember, because the "annual cycle of vegetablelife" seems to start then...
John Burroughs 「Ways of Nature」
...But it was far otherwise with theannual cycle of the seasons...
Sir James George Frazer 「The Golden Bough」
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