Darwin's team affiliations

Darwin was originally a recruit of Moira MacTaggert but when the original X-Men were captured by Krakoa, it was up to her four mutant "fosters" to head into battle, unfortunately they weren't ready. Darwin is credited as being a member of the second team X-Men, no matter how short-lived it was and the fact that it was not until long after their fall that they were known to exist. He was seen as joining the team in X-Men: Deadly Genesis #4 (2006) but currently he has returned and is a member of the Uncanny X-Men team.