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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.” quote by Neil Shubin
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““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.””

Neil Shubin

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.

Key Takeaway

Appreciate evolutionary history.

Themes

evolution genetics biology

Mood

curious analytical

Type

scientific educational

When to use this quote

  • medical research
  • education
  • conservation biology

Key Concepts

vestigial traits species adaptation comparative genomics

Questions to Reflect On

  • What does this tell us about adaptation?
  • How can we study dormant genes?
A Different Perspective

Some genes may still have unknown functions.

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