If you found an animal in your farm, a box will pop-up asking if you want to help the lost animal. You could not keep the animal you found in your farm. You could only put it up for adoption, and your friends could adopt the lost animal. If you want that kind of animal for yourself you have to adopt it from your friends' walls.
No.
Animals are animals, you can collect from them. Didn't you know what an animal was? Hope this Helps, the FarmVille Guru.
To get animals on Farmville, you either buy them from the market with your Farmville dollars (which are received by leveling up or buy purchasing them) or with your Farmville coins (which are received by harvesting crops, trees, or animals, or by helping friends or won in the daily raffle). You can also get rare Farmville animals by adopting them when they wonder on to a neighbors farm.
No. Animals don't die on Farmville.
Getting an OX on Farmville is pretty easy, as is acquiring many other animals. If you follow one of the guides on the linkfurther down the page, this should help.
No
no..
You cannot trade animals on Farmville, but you can give them as gifts. An animal you give as a gift is free and is not one of the animals you own.
Zoos keep animals to help them. They to keep some of the animals so when they are about to go extinct then there will be some left on earth.
Your right... there is no such thing as "rare" animals.
No.
No there ain't.