Kissing is the best way to express your love towards your partner. Mothers also express their affection towards their babies by kissing them. Similarly, brothers and sisters, friends, lovers and BFFs convey their longingness by kissing.
So the strange thing is that not only humans but also animals take the same route to reveal their intimacy. They also hug and kiss in the same manner we do, says a study conducted by Heisenberg University of Germany.
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