It is a tendency not to notice and more quickly forget stimuli that creates and causes emotional discomfort and it contradicts your opinion belief system and is identified as behavior that all people tend to see or exhibit on their particular frame of reference. It can be referred to as a one-sided behavior and is also to be also an issue for the advertisers as due to the previous belief system of the people.
The most basic definition of fertile is "being able to produce offspring". In humans this means being able to have children, and in other species, such as plants, it means being able to reproduce: by producing seeds for example.
