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Worm Atlas

Bristol mushroom compost, 1951 C. elegans

Make the worm yours and tap for surprises!

Caenorhabditis elegans

The world traveller

The famous laboratory worm is also a wild explorer of short-lived, bacteria-rich places such as rotting fruit and compost. In the lab these nematodes eat bacteria growing on agar plates. The larger worm is a hermaphrodite and the smaller worm is a male.

⚥ hermaphrodite + ♂ rare male Rotting plants & compost

Tiny surpriseN2 came from mushroom compost near Bristol. C. elegans can be frozen alive in a protective solution and revived after thawing. This is the reason for its cryo-vial jetpack. An N2 sample that was frozen around 1968 gave rise to an ancestral laboratory stock used in labs around the world.

Where in the world are the worms?

World map with featured Caenorhabditis records Interactive representative locations for six Caenorhabditis species, including records from Hawaiʻi, Japan, Europe, the Americas, Oceania, and tropical regions.

Drawing the world…

Mostly selfing Outcrossing
Bristol N2, England CaeNDR C. elegans: the world traveller
For curious grown-ups: map notes and sources

The map shows selected published collection records.

Kauaʻi: SoundsExciting Do-do-do CC BY 3.0.

Guadeloupe hand-drum recordings: MrRentAPercussionist, CC BY 4.0 (trimmed excerpts with fades).

Pohnpei lorikeet call: Todd Mark, XC75751, CC BY-NC-SA 3.0 (excerpt with fades). Leaf rustling: Brandon Morris, CC0.