Our hundreds of useless olfactory genes are left over from…
““Our hundreds of useless olfactory genes are left over from mammal ancestors who relied more heavily on the sense of smell to survive ... Our genes are similar to primates’, less similar to other mammals’, less similar still to reptiles’, amphibians’, fishes’, and so on.””
About This Quote
This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.
Many olfactory genes are vestigial, reflecting ancestors' reliance on smell, showing evolutionary change across species.
In simple terms: Our smell genes are leftovers from ancestors.
Appreciate evolutionary history.
Themes
Mood
Type
When to use this quote
- medical research
- education
- conservation biology
Key Concepts
Questions to Reflect On
- What does this tell us about adaptation?
- How can we study dormant genes?
Some genes may still have unknown functions.