>>55611179>Giovanni having a Kangaskhan in his final team might be hinting at Kanga originally being Marowak's evolution and presumably also ground type at some point.yeah there was actually a third cubone evolution in the leak, which showed a bony thing holding a baby. my assumption is that they reworked it into kangaskhan when they removed the third evo, such that it is *inspired* by cubone/marowak but isn't related to it anymore.
you see the same thing with sabrina's venomoth, and with the 99% likely butterfree/venomoth swap, implies that butterfree was originally going to be a psychic pokemon. bug/psychic even explains the design direction for the mon, with the massive eyes, the flying posture that looks more like its floating, etc. venonat and butterfree even had the same poses all the way up to gen 4, almost like an artist was referencing/bemoaning the swap.