The piece raises two science questions: why black-and-white images can feel appealing, and why human cells normally use pairs of chromosomes rather than three.
01Summary
- 01New Scientist asks why people often enjoy black-and-white photos or videos more than images limited to two other colours.
- 02It also asks why, if two chromosomes are better than one, cells do not use three instead.
- 03The item is presented as part of a weekly questions feature and no further text is provided.
- 04No answers are given in the source text.
02Why it matters
These questions touch on how humans perceive images and how biology is organised at a basic level. They matter because they point to everyday experience and to the structure of human genetics.
Answers are generated by AI from the story summary; they are not investment, health or legal advice.





