Are there women paedophiles?

Paedophiles are invariably thought of as men and they mostly are. But do women commit sexual abuse against children, and if so, why is it rarely discussed? 

Colin never knew innocence as a child. His earliest memories are of his mother sexually abusing him. In the bath, in his bed and in the night. Until he was 13. 

Twenty years later, after a young life derailed by truancy, drugs and violence, he is still deeply affected by what he says happened. More...

See also:

1. Child abuse and child porn: this is disturbing...
2. India: boys as young as six being abused...
3. Different strokes, or how paedophiles lure kids...