Final answer:
A common theme in H.G. Wells's 'The Island of Dr. Moreau' and 'The Invisible Man' is the examination of human nature's dark side and the consequences of uncontrolled scientific advancements, highlighting concerns about ethical experimentation, the human condition, and societal issues.
Step-by-step explanation:
A common theme in H.G. Wells's works, specifically The Island of Dr. Moreau and The Invisible Man, is the exploration of the darker sides of human nature and technology's impact on society. These works delve into the ethical consequences of scientific experimentation and the perils of unchecked ambition. In The Island of Dr. Moreau, Wells critiques the moral irresponsibility of playing God through vivisection and the creation of human-animal hybrids.
Similarly, The Invisible Man showcases the destruction wrought by the misuse of scientific discovery, as the protagonist's invisibility leads to a descent into madness and violence. Both novels underscore the potential for technology to dehumanize and corrupt, reflecting Wells's interest in societal issues and the human condition.