The tendency to look for or pay attention only to information that confirms s one's own belief is called:

The correct answer is confirmation bias.
Confirmation bias is a term we use to refer to the event where an individual may interpret something, such as a piece of evidence, in terms of what he or she believes in. For example, I believe that a particular thing is true, so I will analyze evidence around me in order to confirm that my belief is correct.

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.