Animals disappeared

Theres not much you can do now, if I was you, I would start over

Well, starting over is one of the only things you can do. But this time make sure you take care of your animals more often. They will die if they have been sick for too long.

I have Zoo tycoon 1 on my pc. It sometimes says, "LION 5 HAS DIED OF OLD AGE." It probably died or something. Then it doesn't let you do it, since you don't take care of your animals well

They will die from one of two things: 1. They have been sick too long.
2. They were very old. But whats wierd is that oe of my baby animals died and I was taking great care of it. Strange.....

If your animals disappeared, it means you didn't take care of them and they died. You have to click on each animal in each pen, the click the animal icon. You will get a list of tasks to do. Do each one. When your animals are in their pen, you can tell which ones need attending because there will be a red frown face above them. If you can't buy anymore animals, it means that you are at your limit. Sell some of your babies; then, you can buy more.

From every site I've researched on about this game, they say that the animals won't get sick or die if you place a zookeeper in each animal exhibit.