Genetic drift in a bottle: Buri's 107 fruit-fly populations changedclaude-science/example-gallery/bio-drift
Nearest release: v2.1.302, published under an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 16 Oct 2026 16:02 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 18:07 UTC.
Upstream edited
Recorded here
Lines+1added
Lines−1removed
From line
8
where the diff opens
First seen
16 Oct 2026
this site's first read of the page
Recorded edits3to this page, all time
The whole hunk
from line 8, old and new numbered
/
from line 8
88
99## Prompt
1010
11Copy the prompt and paste it into a new session in [Claude Science](/docs/claude-science/overview). By default, Claude asks with a [permission card](/docs/claude-science/core-concepts#permission-cards) before it runs code or installs packages.
11Copy the prompt and paste it into a new session in [Claude Science](/docs/claude-science/overview.md). By default, Claude asks with a [permission card](/docs/claude-science/core-concepts.md#permission-cards) before it runs code or installs packages.
1212
1313```text Prompt wrap theme={null}
1414In a 1956 paper, Peter Buri described keeping 107 bottles of fruit flies for 19 generations, restarting each bottle every generation with 8 males and 8 females picked at random. Every founder carried one copy each of two neutral eye-color alleles, bw and bw75, so bw75 started at a frequency of 0.5 in every bottle.
No line in this hunk matches that.