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Eisenia fetida
These are my little co-workers in the job of composting all my kitchen waste. I harvest their worm-castings (see second picture) to fertilize my kitchen-garden.
Eisenia fetida (older spelling: foetida), known under various common names such as redworm, brandling worm, panfish worm, trout worm, tiger worm, red wiggler worm, red californian earth worm, etc., is a species of earthworm adapted to decaying organic material. These worms thrive in rotting vegetation, compost, and manure; they are epigean. They are rarely found in soil, instead preferring conditions that are inimical to some other worms. In this trait they resemble Lumbricus rubellus. They have groups of bristles (called setae) on each segment that move in and out to grip nearby surfaces as the worms stretch and contract their muscles to push themselves forward or backward. Eisenia fetida worms are used for vermicomposting. They are native to Europe, but have been introduced (both intentionally and unintentionally) to every other continent except Antarctica. (Wikipedia)
As with other earthworm species, Eisenia fetida is hermaphroditic. However, two worms are still required for reproduction. The two worms join clitellums, the large orangeish bands which contain the worms' reproductive organs, and which are only visible during the reproduction process. The two worms exchange sperm. Both worms then secrete cocoons which contain several eggs each. These cocoons are lemon-shaped and are pale yellow at first, becoming more brownish as the worms inside become mature. These cocoons are clearly visible to the naked eye.
1 Comment
Great info, Ava! Worms are pretty cool. I've liked them every since I was little and played in the dirt with them :)