Translation of Schlüsselbein

The citizens actually welcomed the shrinking of the population because they thought that the fewer people there are the more place and wealth the rest could share as more resources are available.
But we need to asked ourselves why we actually are built in such a way that we so easily dislike others and build stereotypes. What leads to such behavior even in well educated individuals?
Puerto Madryn was a boring city, but it was the hub to see the Peninsula Valdes, a nature reserve listed as a World Heritage site by UNESCO. We did not know what to expect but new that we would see Pinguins