How does twinning occur in other animal species?

Oct 1, 2015 ... Left-handedness is more likely to occur in twins than in single individuals. Only about 10% of people in the general population are left-handed. Feb 25, 2019 ... ... percent to 66 percent of the identical twins also will be gay. As this is much higher than the overall rate in the population, this suggests ... Apr 20, 2023 ... Just over 3 percent of babies in the United States are now born in sets of two, three or more, with the majority — about 97 percent — of these ... Mar 18, 2019 ... Finally, female twins with a male co-twin were 2.6 percentage points ... Corresponding proportions in the total population of twin ... May 6, 2022 ... That's an average of 32.1 per 1,000 live births. This number includes naturally occurring multiples and women who went through fertility ... Aug 18, 2016 ... The twin boom. The proportion of twins in the population has waxed and waned in human history. For the first time we understand why. by Laura ... Aug 15, 2016 ... ... percent. “Some ... Already, babies born through in vitro fertilization are more likely to be identical twins than the population at large. Jan 9, 2023 ... The proportion of identical twins is the same everywhere in the ... population in the United States was until recently much higher than ... Oct 11, 2017 ... Because births of twins are rising and many people find twins fascinating, Dr ... Around 40 percent of twins make up their own languages. Apr 24, 2023 ... No, the likelihood of having twins varies across different regions and populations. According to the World Health Organization (WHO), the global ...