...The yearly cycle of the Tiger Swallowtail is much likethat of the related species...
Clarence M. Weed 「Butterflies Worth Knowing」
...There is a decided variation in the length oftime required for the completion of the cycle from egg tobutterfly...
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」
...One-half the cycle (from replacement on one side to replacement on the other) varied from five to twenty days, indicating that the cycles for each fang are independent of one another...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...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)」
... Snails and frogs serve as intermediate hosts for various stages in the life cycle of these flukes...
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」
...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」
...The ovarian cycle begins in July or August, after ovulation hasoccurred...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...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」
...Even though there are severalwell spaced periods of unusually heavy rainfall in the courseof a summer, each one initiates a new cycle of migration, matingand spawning...
Henry S. Fitch 「Field Study of Kansas Ant-Eating Frog」
...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」
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