I have five siblings, all brothers, do you have siblings?
I have no siblings, because I don't share my parents with anyone!  I'm an only child.
I know people who have half siblings, they share one parent.
I am sorry I missed out playing a role in someone's else's life as their sibling, whether half, whole, or step.
Step siblings is when there is no blood relation but the parents have married making the children step siblings
Yeah, that happens, and sometimes there are siblings who grow up in separate homes.
Yes, there are some studies being done on birth order of siblings as related to success
a strong presence in pop psychology and popular culture.
Theory.
Alfred Adler (1870–1937), an Austrian psychiatrist, and a contemporary of Sigmund Freud and Carl Jung, was one of the first theorists to suggest that birth order influences personality. He argued that birth order can leave an indelible impression on an individual's style of life, which is one's habitual way of dealing with the tasks of friendship, love, and work. According to Adler, firstborns are "dethroned" when a second child comes along
but Martita refused to go and opted to run away. Fontaine and Martita became estranged following the incident. While promoting her autobiography in 1978, Fontaine addressed the issue, stating, "Until my adopted daughter goes back to see her parents, she's not welcome. I promised her parents. I do not forgive somebody who makes me break my word."
Personal life Sibling rivalry.
Fontaine and her sister, Olivia deHavilland, are the only set of siblings to have won lead acting Academy Awards. Olivia was the