...Preserved western cottonmouths were examined for the purpose of determining variation, distribution, food habits, body proportions, embryonic development, and reproductive cycles... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...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)」
...Each note is a vibrant"waunk," having 110 to 180 pulses per second and dominant frequency of1600 to 2100 cycles per second (Pl...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Each note is a vibrant rattle having 78 to 135 pulses persecond and major frequences of about 1200 to 2600 cycles per second (Pl...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...These observations indicate only that the populationbreeds at more than one time in the year, but do not provide any evidence onthe breeding cycles of the individual frogs...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...panamintinus fluctuatewidely, possibly in response to weather cycles...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...Mature sperm were found in epididymides at all times of the yearbut were most numerous in spring and autumn, the period betweenspermatogenic cycles ()...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...carolina to be keenlysensitive to sounds in the range of 100-600 cycles per second butprogressively less sensitive to sounds of higher and lower frequencies...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...65second, and a rate of 92 to 100 pulses per second; the dominantfrequency falls between 3000 and 3200 cycles per second ()...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
...Subterranean winter inactivity is thought to bean integral part of the salamanders' lives, and is suggested in partby the life cycles of the worms...
Richard F. Johnston 「Natural History of the Salamander, Aneides hardii」
...The notes have about 50 pulses per second, a fundamental frequency of 56 cycles per second and a dominant frequency of about 3000 cycles per second (Table 2, Pl...
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...The mating call of this species is a series of closely spaced notes having a fundamental frequency of about 100 cycles per second...
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...”
I said, “When first the world beganYoung Nature thro’ five cycles ran,And in the sixth she moulded man...
Alfred, Lord Tennyson 「The Early Poems of Alfred, Lord Tennyson」
...A zone of mechanical vibrations,of a frequency of 500,000 cycles per second, was created by a largequartz crystal in the water, which was electrically operated...
Various 「Astounding Stories of Super-Science, August 1930」
...This wasnot so good as the cycle of 11 years would have been, and not to becompared with the combination of the two cycles in that of 19 yearsascribed to Meton...
E. Walter Maunder 「The Astronomy of the Bible」
...He was therefore compelled to retain the useof cycles and epicycles, in order to account for irregularities in theuniformly circular motions of those bodies...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...We believe in no serpent, turtle, orelephant supporting the world; no Atlas holding up the heavens;no crystal domes, "with cycles and epicycles scribbled o'er...
Henry Warren 「Recreations in Astronomy」
...Butthese cycles are themselves subject to cycles, sothat the Saros itself passes through a cycle ofabout 64 Saroses before the conditions under whichany given start was made, come quite round again...
George Chambers 「The Story of Eclipses」
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