The X-Babies are a group of Mojo-manufactured child clones of the X-Men. They first appeared in Uncanny X-Men Annual #12 and were created by Chris Claremont and Art Adams.
In Uncanny X-Men Annual #10 (also by Chris Claremont and Art Adams), Mojo had de-aged the X-Men into children; this is what most likely inspired the creation of the X-Babies.
In Uncanny X-Men Annual #12, the X-Men are assumed to be dead (having died in Dallas, only to be resurrected by the goddess Roma). Mojo, missing his greatest rating generators, had his people try to recreate his own version of the X-Men. After many unsuccessful attempts, the X-Babies were created. They soon rebel against Mojo. Mojo was about to kill them when he was told that their instant ratings were the highest ever recorded.
There have been several incarnations of the X-Babies over the years, usually resembling whatever the current team of X-Men is. There has also been a similar team instead based on the Avengers, called the Mitey 'Vengers, who appeared in the X-Babies Reborn one-shot. There have also been several X-Babies villain teams including the "Brotherhood of Bullies" based on the Brotherhood of Mutants (X-Babies Murderama, 1998).
Read more about X-Babies at Wikipedia ...
Official Site: Marvel Entertainment
Links: Wikipedia Marvel Directory Comicvine