Back to today’s briefing

Story perspectives

Urban Raccoons Evolve Shorter Snouts from Trash Diet

11/15/2025

28 4

Summary

Story summary

Researchers at the University of Arkansas at Little Rock analyzed nearly 20,000 raccoon images and found urban raccoons have shorter snouts than rural ones.
The shorter snouts are linked to access to human trash as a food source.
The study aligns with the Neural Crest Domestication Syndrome hypothesis, suggesting domestication traits can emerge without human intervention.
Researchers plan to examine similar patterns in other urban mammals.

1 of 1

Story summary

Researchers at the University of Arkansas at Little Rock analyzed nearly 20,000 raccoon images and found urban raccoons have shorter snouts than rural ones.
The shorter snouts are linked to access to human trash as a food source.
The study aligns with the Neural Crest Domestication Syndrome hypothesis, suggesting domestication traits can emerge without human intervention.
Researchers plan to examine similar patterns in other urban mammals.