By SETH BORENSTEIN (AP) — Turns out cows can be potty trained as easily as toddlers. Maybe easier. It's no bull. Scientists put the task to the test and 11 out of 16 cows learned to use the “MooLoo” when they had to go. Just like some parents, the researchers used a sweet treat to coax the cows to push through a gate and urinate in a special pen. And it took only 15 days to train the young calves.