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The research was quite
. The pigs spent many
playing the game. During the last 50
, the pigs played the game on three different levels. If they were successful at one
, they moved to the next level. The higher levels had better
. A scientist told CNN that: "The pigs clearly understood the
between their own behavior, the joystick, and what was happening on the
." Dr. Croney said it was important to understand how pigs get information, and what they are
of learning and remembering. She said this would help us to learn what pigs think of interacting with
. We could also understand what pigs think of
environments.