coincided — to occupy the same place in space, the same point or period in time, or the same relative position: The centers of concentric circles coincide. Our vacations coincided this year.
concurred — to accord in opinion; agree: Do you concur with his statement?
collaborated — to work, one with another; cooperate, as on a literary work: They collaborated on a novel.
cooperated — to work or act together or jointly for a common purpose or benefit.
coevolved — Simple past tense and past participle of coevolve.
lived — having life, a life, or lives, as specified (usually used in combination): a many-lived cat.
cohabited — to live together as if married, usually without legal or religious sanction.
