i have only know of a monkey to only have one baby
Green monkeys exist in a polygamous society. Female green monkeys typically give birth to one baby monkey at a time.
I can't speak for the U.S. specifically but according to the National Institutes of Health, Turner Syndrome effects 1 out of every 2,500 female live births worldwide. For more information about it, you can peruse NIH's site at:http://turners.nichd.nih.gov The site has a wide variety of publications you can access, information about current studies, and even the contact information for a NIH doctor if you have questions about the syndrome.
Not necessarily
WHEN MALE MONKEYS EAT BANANAS OUT OF THE FEMALE MONKEYS BUTTOCKS. SIGNED- Spencer A. of TMB
The sex ratio at birth refers to the number of male births compared to female births within a specific population, typically expressed as the number of male births per 1,000 female births. This ratio is generally skewed towards males, as natural biological factors result in approximately 105 to 106 male births for every 100 female births. Deviations from this natural ratio can indicate societal factors, such as gender preference, which may lead to sex-selective practices. Monitoring this ratio is important for understanding demographic trends and potential implications for gender equality.
According to the CIA factbook https://www.cia.gov/library/publications/the-world-factbook/geos/us.html which conducts studies about many facets of each state and countries statistics based on census and other information, the United States has a population growth of 0.894% (2007 est.) and a birthrate of 14.16 births/1,000 population (2007 est.) with a male to female ratio of 1.05 males/female.
Killing female births
Bears are mammals and have live births of the cub by the female bear.
This animal does not have a specific name for the indicated gender. For example, "female cheetah
In 1999, there were approximately 3,959,417 births in the United States.
There were approximately 118 million births worldwide in the 1980s.
The percentage of hermaphrodite births in humans is estimated to be very rare, occurring in less than 1% of births. Hermaphroditism, or intersexuality, results in individuals having a mix of male and female physical characteristics.