A brother is a man or boy who shares one or more parents with another; a male sibling. The female counterpart is a sister. Although the term typically refers to a familial relationship, it is sometimes used endearingly to refer to non-familial relationships. A full brother is a first degree relative. Overview
The term brother comes from the Proto-Indo-European *bʰréh₂tēr, which becomes Latin frater, of the same meaning. Sibling warmth or affection between male siblings has been correlated to some more negative effects. In pairs of brothers, higher sibling warmth is related to more risk taking behaviour, although risk taking behaviour is not related to sibling warmth in any other type of sibling pair. The cause of this phenomenon in which sibling warmth is only correlated with risk taking behaviours in brother pairs still is unclear. This finding does, however, suggest that although sibling conflict is a risk factor for risk taking behaviour, sibling warmth does not serve as a protective factor. Some studies suggest that girls having an older brother delays the onset of menarche by roughly one year. Research also suggests that the likelihood of being gay increases with the more older brothers a man has. Some analyzers have suggested that a mans attractiveness to a heterosexual woman may increase with the more he resembles her brother, while his unattractiveness may increase the more his likeness diverges from her brother.
Senator and two-time presidential candidate, and Joe McCain, American stage actor, newspaper reporter
Justin, Travis, and Griffin McElroy, podcasters
Billy Leon McCrary and Benny Loyd McCrary, wrestlers known as The McGuire Twins
Harold Nixon, Richard Nixon, Donald Nixon, Arthur Nixon, and Edward Nixon
Alan Osmond, Wayne Osmond, Merrill Osmond, Jay Osmond and Donny Osmond, members of The Osmonds
Logan Paul and Jake Paul, YouTubers, internet personalities, and actors
Neil and Ronald Reagan
Ringling brothers, circus performers, owners, and show runners
John D. Rockefeller and William Rockefeller, co-founders of Standard Oil and members of the Rockefeller family
Cornelius Roosevelt and James I. Roosevelt
Theodore Roosevelt Jr., Kermit Roosevelt, Archibald Bulloch Roosevelt, and Quentin Roosevelt
James Roosevelt, Elliot Roosevelt, Franklin Delano Roosevelt Jr., and John Aspinwall Roosevelt
Russo brothers, filmmakers, producers, and directors
Daniel Sedin and Henrik Sedin, professional hockey players
Wallace Shawn and Allen Shawn, writer and composer of The Fever
Bobby Shriver, Timothy Shriver, Mark Shriver, and Anthony Shriver
Thomas "Tommy" Smothers and Richard "Dick" Smothers, performing artists known as the Smothers Brothers
Prabowo Subianto and Hashim Djojohadikusumo, politicians
Fred Trump Jr., Donald Trump, and Robert Trump
Vincent van Gogh, painter, and Theo van Gogh, art dealer
J. J. Watt, T. J. Watt, Derek Watt, National Football League Players
Damon Wayans, Dwayne Wayans, Keenan Ivory Wayans, Marlon Wayans, Shawn Wayans, performing artists, directors and producers
Bob Weinstein and Harvey Weinstein, film producers
Brian Wilson, Dennis Wilson, and Carl Wilson, members of The Beach Boys
Marvin Winans, Carvin Winans, Michael Winans, and Ronald Winans, members of The Winans, singers and musicians
Orville Wright and Wilbur Wright, known as the Wright brothers, pioneer aviators
Agus Harimurti Yudhoyono and Edhie Baskoro Yudhoyono, politicians

Other works about brothers
In the Bible:
Cain and Abel, the sons of Adam and Eve
Jacob and Esau, the sons of Isaac and Rebecca
Moses and Aaron, prophets
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