See the attached game file, starting at around 5:25. The sheep appears to get stuck in a very small rut. It's hard for me to tell whether or not this is intended functionality. It certainly doesn't _look_ natural.

Any ideas?

Lol, thats just unlucky. there must have been a pixel above it or a overhang that it was hitting before it got out.

Nobody ever complained about this happening before, so yes, it has been accepted as the intended design.

It does make me want to end Life when it happens in serious games, though.

Oh, you think taht is bad luck?: wait until one of your cows turns around and starts chasing your worm :P

I think this was done on purpose by Team17's awesome AI code programmers to simulate the animals' natural stupidity.