Changes

: The '''gene banks''' began by storing the [[Sperm Cell|sperm]] and [[Ovum|egg cells]] from endangered [[animal]]s in case they became [[Extinction|extinct]]. They then started storing seeds from [[endangered]] plants. They are gradually moving on to collect the [[Genetic Material|genetic material]] of all [[species]] on [[Earth]] so that they can be re-introduced in case they become [[Extinction|extinct]].