Jeff looked up and down the list, not able to find anything that he could decide to try. The lists were extensive, noting just about every variation on animal that he could think of, and a bunch that he couldn't identify without looking the up.
Finally, at the end of the list, he found a random selection. Curious, he clicked on it. There was very little explaination, but the intent was clear. He could narrow the focus down to a type of animal, like mammel or bird, or leave that random, too. He could't specify anything about that animal, though. He could set the time to anywhere he'd like, even leaving that random. The program did state that it would alter location as needed. Jeff wondered about that for a moment before he realized that the machine might turn him into a fish, and he'd need it to also put him in appropriate water!
Curious, but a little nervous, Jeff started setting the controls...