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Alternatives to r/biology

A short, curated guide — not an automatic related dump. Figures come from SubMouse's safe-for-work directory when we have them.

r/biology (about 5.5M members, directory rank #159) discusses all things biology. Broader scientific research news and open science Q&A each fit better when the question is not biology-specific.

How to choose

Stay on biology for biology topics and field discussion. Use science for multi-discipline research news, and askscience when you want a science question answered rather than biology community talk.

Starting point: r/biology

r/biology — Biology

  • Members: 5.5M
  • Directory rank: #159
  • 7-day growth: +440

A place to discuss all things biology! We welcome people and content from all related fields.

Curated alternatives

r/science

Reddit Science

  • Members: 34.6M
  • Directory rank: #11

When to choose it: Latest research across astronomy, biology and more.

Why it is here: Public description: This community is a place to share and discuss new scientific research. Read about the latest advances in astronomy, biology, medicine, physics, social science, and more. Find and (about 34.6M members, rank #11). Listed as related to biology.

How it differs from r/biology: Multi-field science hub versus biology-focused room.

r/askscience

AskScience: Got Questions? Get Answers.

  • Members: 26.4M
  • Directory rank: #20

When to choose it: Ask a science question, get a science answer.

Why it is here: Public description: Ask a science question, get a science answer. (about 26.4M members, rank #20). Q&A format rather than biology community posts.

How it differs from r/biology: Science Q&A versus biology discussion hub.

Related comparisons

Need a longer list?

Run the automatic finder for r/biology (results are matched from our directory; that page is not indexed): Find related to r/biology.

Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and culture claims appear only when we have them — missing fields stay n/a. Directory rank is listing order. Communities outside the published Top 100 open in the info tool instead of a full community page. Guide updated 2026-11-07.