Darwin's own grandfather, Erasmus Darwin, wrote an extensive book outlining a transmutation view, and it is known that Darwin had read this as a teenager.
See more synonyms on Thesaurus.com. noun. 1. the group of spectators at a public event; listeners or viewers collectively, as in attendance at a theater or concert: The audience was respectful of the speaker's opinion.
The term target audience is a bit narrower; it refers specifically to the group of consumers targeted by advertisements. Outside of the context of business, target audience can also refer to the specific group of people targeted by television shows, movies and music products. An advertisement's target audience can be the same as the brand's target market, but a target audience can be more well defined.