Originally Posted by Fat 0mastar
DW Male + Non DW Female = No DW ability
Non DW Male + DW Female = Possible DW ability
DW Male + DW Female = Possible DW ability
Works for both the same species breeding or two different species.
Makes sense. It prevents us from breeding any Pokemon with a DW ability that haven't already been released with DW abilities.
Here's a good question: does DW Ditto still count as the female when breeding for abilities? Obviously it's not one we'll be able to answer for a while, unless someone figures out how to hack a Ditto with a Dream World flag.