November 16, 2011 - Added version for base game. All items are found under Miscellaneous/Miscellaneous. I have tested this in Sims Life Stories and it did work, so it should work for everyone who has any base game combination without Pets or above.
These Sheep randomly run around your lots. They have two needs which are social and hunger.
All items are found under Miscellaneous/Pets.
To purchase them you must first place the sign on you lot, then click on it to purchase purchase a Ewe, Ram or Lamb. Lambs require a ewe to take care of their needs. To change their texture you have to use the design tool under buy mode, just as you would recolor other items.
There is a feed trough and water trough, they will need these to fill their hunger needs.
A Straw bed is available for their sleeping, but not required.
Lambs will grow up to be adults after a few days.
Credits: rumbecome at MTS for making me aware of the farmsims site. Farmsims for some of the coding and animations. He did put a lot of work into the updates of these and I want to thank him for that.
Sims have an option to pet the sheep or snuggle the lambs, which will increase their social.