The DNA secret behind orange cats

Approximately 80% of orange cats are males, including the four orange cats owned by the Short Wave team. Scientists have long suspected that orange color was a sex-linked trait — hiding somewhere on the X chromosome. Now, scientists at Stanford University and Kyushu University in Japan have characterized the mutation responsible for orange cat coloration. Both groups published their results in the journal Cell Biology this week. Have a question about the animals all around us? Email us at shortwave@npr.org — we'd love to hear from you!Listen to Short Wave on Spotify and Apple Podcasts.

May 16, 2025 - 08:12
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The DNA secret behind orange cats
Approximately 80% of orange cats are male. But why?

Approximately 80% of orange cats are males, including the four orange cats owned by the Short Wave team. Scientists have long suspected that orange color was a sex-linked trait — hiding somewhere on the X chromosome. Now, scientists at Stanford University and Kyushu University in Japan have characterized the mutation responsible for orange cat coloration. Both groups published their results in the journal Cell Biology this week.

Have a question about the animals all around us? Email us at shortwave@npr.org — we'd love to hear from you!

Listen to Short Wave on
Spotify and Apple Podcasts.