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In the Womb is a documentary television special miniseries that was premiered on March 6, 2005, on the National Geographic Channel.Originally beginning as a special about human pregnancy (titled Life Before Birth in the UK), the program features the development of embryos in the uterus of various animal species.
The huge animals have the longest pregnancies of all mammals. But the 22 month gestation period is not just because of their size. Baby ellies need to stay in the womb that long for their ...
The phenomenon where someone carries a twin inside them is called fetus in fetu. It happens in approximately 1 in 500,000 births. You can hear more about it on the podcast below, or read on:
A baby born within the normal range of weight for that gestational age is known as appropriate for gestational age (AGA). An abnormally slow growth rate results in the infant being small for gestational age, while an abnormally large growth rate results in the infant being large for gestational age.
Pregnant male seahorse. 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 and males producing smaller gametes ().
In these large animals, the birth process is similar to that of a human, though in most the offspring is precocial. This means that it is born in a more advanced state than a human baby and is able to stand, walk and run (or swim in the case of an aquatic mammal) shortly after birth.
Gestation, called pregnancy in humans, is the period of time during which the fetus develops, dividing via mitosis inside the female. During this time, the fetus receives all of its nutrition and oxygenated blood from the female, filtered through the placenta , which is attached to the fetus' abdomen via an umbilical cord .
While inside the uterus the baby is enclosed in a fluid-filled membrane called the amniotic sac. Shortly before, at the beginning of, or during labour the sac ruptures . Once the sac ruptures, termed "the water breaks", the baby is at risk for infection and the mother's medical team will assess the need to induce labour if it has not started ...