8. List at least 5 new discoveries about viruses.

Viral genes may play a role in addiction

Giant viruses invent their own genes

Alzheimer's disease and viruses

viruses are literally falling from the sky

An ancient virus in the human brain

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.