Where do I catch Cubone/Marowak/Khanghaskan in the safari zone?

Question

I saw a Khanghaskan in with a girl! I WANT A MAROWAKZ D:

Answer 1

Cubone: In the Desert area by default, with a 20% chance of appearing.
Marowak: Also in the Desert area, though can be found at a higher level if 6 Peak objects are placed. It has a 10% chance of appearing.
Kangaskhan: In the Wasteland area by default, with a 10% chance of appearing.

Note that they cannot be encountered if it is at night.