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Miscarriage occurs in all animals that experience pregnancy, though in such contexts it is more commonly referred to as a spontaneous abortion (the two terms are synonymous). There are a variety of known risk factors in non-human animals. For example, in sheep, miscarriage may be caused by crowding through doors or being chased by dogs. [163]
A female produces an ovum with a full set (two sets of genes) provided solely by the mother. Thus, a male is not needed to provide sperm to fertilize the egg. This form of asexual reproduction is thought in some cases to be a serious threat to biodiversity for the subsequent lack of gene variation and potentially decreased fitness of the offspring.
Female dogs are at risk for endometritis and pyometra in the postpartum period and after estrus or vaginitis. Signs and symptoms include fever, lethargy, loss of appetite, excessive thirst, restlessness, a foul smelling vaginal discharge which may or may not be bloody, infertility, or they may be asymptomatic.
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Losing a pregnancy is hard. These tips can help how you manage the issue at work. iStock. When my pregnancy ended in an unexpected loss, I went from butterflies while anticipating my first scan to ...
The term is often used in distinction to live birth (the baby was born alive, even if they died shortly thereafter) or miscarriage (early pregnancy loss [37]). The word miscarriage is often used incorrectly to describe stillbirths. [37] The term is mostly used in a human context; however, the same phenomenon can occur in all species of ...
Each male rat was castrated, surgically joined to a female, and given a transplanted uterus. The researchers then implanted embryos in both the uterus of the male and female parabionts. Pregnancies were allowed to develop until two days before the end of a full term, and were terminated by caesarean section. The researchers studied 46 such ...
The topic of miscarriage has been taboo for far too long. And until recently, working women have had to suffer in silence at work after losing a pregnancy. But hopefully, with the passing of the ...