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Individuals from different subspecies usually interbreed where their geographic distributions meet.
Half Brother
A male sibling who shares one biological parent with another sibling, making them genetically half-related.
Step Brother
A male sibling gained through the marriage of one’s parent to the parent of the other child, not related by blood.
Foster Brother
A boy or man who is not one's biological brother but with whom one shares a parental guardian through a formal or informal foster care arrangement.
Adoptive Brother
A male sibling who has become part of a family through the process of adoption, establishing a legal and social relationship.
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