I think this quote means that deception and lies are everywhere. It also means that everything is not trustworthy. So if the zebra hides everywhere that means people lie all the time. But if people lie all the time then how do you know the truth.
But even though we lie there are some good times to lie too. But true to the quote "the zebra hides everywhere" even though it's not bad all the time. So some times it's good to be the 'Zebra'.