Native advertisements are 1.ads that are so good you enjoy watching, reading, or listening to them 2.ads that are written by credible authors 3.ads designed to blend in with a website's environment, made to look like just another article 4.ads that are much smaller in size than the more traditional ads

3.ads designed to bleind in with a website's environment, made to look like just another article

Explanation:

Because they are an advertising modality designed to integrate seamlessly into the content of the support that houses it, thus avoiding the excessive intrusion that advertising implies in its most traditional form.