He was kind of a little bit nervous when he was sharing it with me, but he told me that when a penguin finds a mate that they want to spend the rest of their life with, they present them with a pebble -- the perfect pebble.
Trochę zdenerwowany powiedział, że kiedy pingwin spotyka partnera,  z którym chce spędzić resztę życia daje mu kamyk - idealny kamyczek.