Biology Facts

How a living body works, from the four letter code that builds it to the organ you are wearing.

Play from this collection

50 cryptograms, each one a fact written for this site rather than a sentence taken from a book. Cited to 19 sources, NCBI Bookshelf the most common.

Sources

SourceFacts

How hard they are

8 easy, 31 medium and 11 hard, graded by the model described in our guide to solving cryptograms.

They average 72.5 letters over 19.2 distinct ones, with 3.6 letters appearing exactly once.

TierCryptogramsPlay

Every one of them

Each has a page of its own naming its source, and its answer on a separate page so you will not run into it by accident.

Source

Other fact collections

CollectionCryptograms

Play from this collection

All fact collections · Collections from books