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Robert Columbia's user avatar
Robert Columbia's user avatar
Robert Columbia's user avatar
Robert Columbia
  • Member for 8 years, 1 month
  • Last seen more than a week ago
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Hi, I'm Robert Columbia

Pronouns: he/him

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Top posts
question
39
Can bacteria be killed by purely physical trauma?
Sep 30, 2020
question
18
When does a virus become a different species?
Jul 21, 2021
question
14
Are there animals that have evolved a resistance to human activity or encroachment?
Jun 15, 2020
question
3
What determines the color of the air sac of a Portuguese man o' war?
Mar 16, 2023
Top network posts
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414
Update: an agreement with Monica Cellio
188
Are there specific issues with unwelcoming behavior toward LGBTQ persons on Stack Exchange?
134
The Windows Phone SE site has been archived
121
Feedback post: Moderator review and reinstatement processes
120
What's the longest distance that can be traveled by only using free transportation?