Subliminal perceptions, also known as subliminal messages, are messages, either visual or auditory, that are presented just beyond the threshold of human perception. A subliminal perception may not be audible enough that the conscious mind might register it but be audible enough for the subconscious mind.
For example it might be an image transmitted briefly and unperceived consciously and yet perceived unconsciously.
Evolution theory is a shortened form of the term "theory of evolution by natural selection," which was proposed in the 19th century by Charles Darwin and Alfred Russel Wallace.
informalif you chew the cud, you spend a long time thinking or talking about something. Synonyms and related words. To think carefully or a lot about things.
