While I cant explain the slug, I just want to point out that a reason these small animals might be attracted to it might include exercising in a confined space. Just running kind of works against many creatures hiding instincts. And running in place is practice for running in a chase.
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While I cant explain the slug, I just want to point out that a reason these small animals might be attracted to it might include exercising in a confined space. Just running kind of works against many creatures hiding instincts. And running in place is practice for running in a chase.