Anchor: A number of slopes and valleys have remained untouched by man and offer a habitat for rare hummingbirds and swallowtail butterflies.
Entailed: Humans have left some valleys and slopes untouched.
Contradiction: Butterflies and hummingbirds have become endangered due to human intervention.
Contradiction: Businesses are almost always damaged. 
Contradiction: Attempt to listen.
Contradiction: People on a beach kicking up sand.
Contradiction: The man is a busser.