So a diesel hybrid, in theory, will give you the best of both worlds.

NPR: Hybrids and the 'Halo Effect' of Car Ads

This lends weight to the theory that a viable hybrid population was sustained by interbreeding over a long time.

ECONOMIST: Humans could have interbred with chimpanzees

This hybrid of raising taxes on top earners and retaining the benefits of trickle down theory would slice right down the middle between the moderate Republican and Democratic positions, and would scream for a compromise by the two sides whose mainstreams are really not that far apart.

FORBES: Guest Post: Hybrid Theory