Something I’m wondering about is the relationship between siblings. I have a very close relationship with my sister. We have always been close and attatched to each other. We have a very good relationship and we are always there for one another. We are sisters who are 2 1/2 years apart (she is older) so I have always wondered if our age played a part in our relationship. 1. Does gender play a part in sibling relationships? For example: Brother/brother, sister/sister, brother/sister2. Do siblings who are close in age closer to each other than those that are more separated by age?3. If the siblings family is close knit does that affect relationships the children have with each other?     4.Do siblings become closer as they grow up or do they tend to drift apart more as they grow up?