A naked asian women and elephant has sex

For reasons relating to protection of the facilities and animals included in this study, access restrictions apply to the individual-level data underlying the findings. A data set of de-identified, population-level data is available at doi: As part of a multi-institutional study of zoo elephant welfare, we evaluated female elephants managed by zoos accredited by the Association of Zoos and Aquariums and applied epidemiological methods to determine what factors in the zoo environment are associated with reproductive problems, including ovarian acyclicity and hyperprolactinemia. Bi-weekly blood samples were collected from 95 African Loxodonta africana and 75 Asian Elephas maximus 8—55 years of age elephants over a month period for analysis of serum progestogens and prolactin. Rates of normal cycling, acyclicity and irregular cycling were For African elephants, univariate assessment found that social isolation decreased and higher enrichment diversity increased the chance a female would cycle normally.
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23.02.2020
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Asian elephant

The African elephant reproduces so efficiently in the wild that overpopulation is now a serious problem in some game parks in Zimbabwe, Botswana and South Africa. The female reaches puberty between 10 and 12 years of age in the wild and, when in captivity, shows oestrous cycles of 14—15 weeks duration. She readily conceives a singleton in the wild yet her uterus has the capacity for twins. She shows a gestation length of 22 months and, in the wild, shows a population density and feed dependent intercalving interval of 4—8 years. The trophoblast erodes the lumenal epithelium of the endometrium and stimulates upgrowths of blood vessel-containing stromal villi, which develop eventually into the broad, tightly folded lamellae of the zonary, endotheliochorial placenta.
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The largest living land mammals, elephants are intelligent, social and vital to their ecosystems. Much of what scientists know about wild elephant behavior comes from African bush elephant studies. Research on wild endangered Asian elephants is difficult and sparse, and zoo elephants are valuable sources of knowledge. Online visitors can catch a glimpse of the Smithsonian's National Zoo's elephants on the Elephant Cam.
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