Estrous Cycle - Cycle Variability

Cycle Variability

Cycle variability differs among species, but typically cycles are more frequent in smaller animals. Even within species significant variability can be observed, thus cats may undergo an estrous cycle of 3 to 7 weeks. Domestication can affect estrous cycles due to changes in the environment.

Read more about this topic:  Estrous Cycle

Famous quotes containing the words cycle and/or variability:

    “Only mediocrities progress. An artist revolves in a cycle of masterpieces, the first of which is no less perfect than the last.”
    —Oscar Wilde (1854–1900)

    “The grand points in human nature are the same to-day they were a thousand years ago. The only variability in them is in expression, not in feature.”
    —Herman Melville (1819–1891)