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Obstructed labor is more common in humans than any other species and continues to be a main cause of birth complications today. [12] Modern humans have morphologically evolved to survive as bipeds, however, bipedalism has resulted in skeletal changes that have consequently narrowed the pelvis and the birth canal. [13]
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The obstetrical dilemma is a hypothesis to explain why humans often require assistance from other humans during childbirth to avoid complications, whereas most non-human primates give birth unassisted with relatively little difficulty. This occurs due to the tight fit of the fetal head to the maternal birth canal, which is additionally ...
In 2006, a Czech research team [66] discovered women with high levels of toxoplasmosis antibodies were significantly more likely to give birth to baby boys than baby girls. In most populations, the birth rate is around 51% boys, but people infected with T. gondii had up to a 72% chance of a boy.
Last year, The Cat House on the Kings shelter alone took in 1,305 cats/kittens. Their goal is to provide animals with a better life either through forever home adoption, foster care or continuing ...
For some species bringing new life into the world also serves as a final act. Here are 10 animal mothers that die after giving birth.
Its name is a French term ("cat-cry" or "call of the cat") referring to the characteristic cat-like cry of affected children. [2] It was first described by Jérôme Lejeune in 1963. [ 3 ] The condition affects an estimated 1 in 50,000 live births across all ethnicities and is more common in females by a 4:3 ratio.
These nations have a maternal mortality rate (MMR) of 6–20/100,000. Poorer nations with high birth rates can have an MMR more than 100 times higher. [2] In Africa, India & South East Asia, as well as Latin America, these complications of parturition may still be as prevalent as they have been throughout human history.