Siblings

In one of her Q&A videos, Daisy answers the question, "Is Alan your brother?" She answers that she does not think of him like a sibling, but she acknowledges that other people have made the joke that "Your dad made Alan. He made you too." To this, she just says "I guess."

Daisy is not aware that she is also one of her fathers creations. She was the first to be created, explaining why she is the most developed out of all his experiments. Maybe Curtis was unhappy with how curious his creation was, and decided to make a companion to keep her occupied so that she would not bother him as much.

Alan started off as a helpless and limbless creature. As he grows, he starts to become self-aware. He then learns to speak, and then move. As seen in the video, "the basement," Alan has human feet and hands. It seems like Alan is developing into a human, just like Daisy. Daisy had finished her development long ago. Curtis had made so many experiments, hoping they would evolve as fast as Daisy had so they could catch up to her and be her companion. All his other experiments did not turn out correctly, but when he was certain the Alan would evolve quickly, he gave him to Daisy. This explains why the other experiments had clearly evolved, but not to the extent that Alan had, even though Alan was the latest experiment. Alan is becoming more and more human, evolving with his human features. Soon, he will be completely human physically, just as Daisy appears.

Curtis never let Daisy out during the day. When Alan was younger, Daisy had to wrap Alan up to protect him from the sun, since it seemed to hurt him. Sunlight is bad for the experiments, and should be kept indoors during the day to stay safe. Also, Daisy did not celebrate birthdays because she was not born, but created.