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In astrophysics, spaghettification (sometimes referred to as the noodle effect) [1] is the vertical stretching and horizontal compression of objects into long thin shapes (rather like spaghetti) in a very strong, non-homogeneous gravitational field.
Superfetation (also spelled superfoetation – see fetus) is the simultaneous occurrence of more than one stage of developing offspring in the same animal. [ 1 ] [ 2 ] [ 3 ] In mammals , it manifests as the formation of an embryo from a subsequent menstrual cycle, while another embryo or fetus is already present in the uterus .
In 2019, a Chinese woman was reported to have two babies from different fathers, one of whom was her husband and the other was a man having a secret affair with her during the same time. [12] In 2022, a 19-year-old Brazilian from Mineiros gave birth to twins from two different fathers with whom she had sex on the same day. [13]
A U.K. woman who was told she would never have children because of a rare condition recently gave birth to twins. When Hayley Haynes was 19, she went to the doctor because she hadn't gotten her ...
[20] [21] [22] GonaCon has been studied in male and female dogs and cats but does not provide long-acting suppression of fertility in these species. In dogs in particular, injection site reactions preclude use of the EPA approved formulation. [23] [24] Zona pellucida vaccines are targeted at females and do not suppress fertility in dogs or cats ...
Male pregnancy is the incubation of one or more embryos or fetuses by organisms of the male sex in some species. Most species that reproduce by sexual reproduction are heterogamous — females producing larger gametes ( ova ) and males producing smaller gametes ( sperm ).
The average time to birth has been estimated to be 268 days (38 weeks and two days) from ovulation, with a standard deviation of 10 days or coefficient of variation of 3.7%. [32] Fertilization age is sometimes used postnatally (after birth) as well to estimate various risk factors.
The first time Hannah Levine (who did not want to use her real name) tried having sex after giving birth, “the pain was immediate,” she says. Levine was taken by surprise. “No one warned me ...