MATE is a CAOS command used in Creatures 2 and Creatures 3/ Docking Station for males to attempt to reproduce.
Only relevant to male creatures — pass on waiting sperm to _IT_ (if _IT_ is female and the same genus). Female will conceive if she is in the right condition — fertile and receptive.
Male creature mates with the IT agent - if IT is a female of the same genus! The female doesn't need to be in reach. If successful, the sperm is transmitted to the female and there is a chance of conception. If pregnancy occurs, gene slot 1 of the mother contains the genome of the child.