puzzle

Linnaeus

Place a species in the tree of life, daily

Summary

Each day gives you one species to classify, branch by branch, down the tree of life. A timer runs while you choose, so every taxonomic guess costs seconds.

  • One new species puzzle each day
  • Classify one branch at a time
  • Timed rounds against the clock

Sign in

Use an account you already have.

We keep your display name, avatar and email address, nothing else. By signing in you agree to the terms and privacy policy.