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Earthworm, 9-12", plain specimen

Item# PM-WORM

In Stock

$1.30 in_stock
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  • 10 $0.91
Quick Overview:
Study the digestive, circulatory, reproductive, and nervous system of the earthworm.
Ages 12+

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Shipping Note: This item contains preserved specimens and only ships to a street address in the 50 US states.

More Information

Earthworm, 9-12", plain specimen

Item# PM-WORM

Our preserved earthworms are an extra-large 9-12” size so dissecting them is easier. You can study the digestive, circulatory, reproductive, and nervous systems of the earthworm. Earthworm species is Lumbricus terrestris (nightcrawler).

10+ pricing is based on bulk-packed specimens. When necessary, you will receive a combination of 10-packs and individually packed specimens to fill your order.

Note: Specimens are initially preserved with a formaldehyde solution, the best animal tissue fixative. The formaldehyde is then displaced first with water and finally with a glycol solution to produce a moist, low-fume specimen which will not decay over time. Plan to use specimens within one year of purchase to ensure the best tissue quality. Specimen discoloration and dryness over time is normal and does not indicate decay.

Store your specimens at normal room temperature—refrigeration is not required. Storage in attics or garages at high temperatures will damage the specimens. Once opened, specimens can be resealed in a zip-lock bag to prevent them from drying out for later use.

Customer Reviews

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Better than last time Review by
The last time I ordered worms (3 years ago), the specimens were poorly preserved and hardly usable. Of the five I ordered this time, all five were better than the five from last time. Four were in really great shape and easy to work with. One seemed a little decayed, and my students had a difficult time securing the cut open worm to the plate.
Great specimen! We were able to complete our dissections identify all the organs and parts easily. Review by
Great specimen! We were able to complete our dissections identify all the organs and parts easily.
good value for good sized worm Review by
We've been ordering earthworms from HST for our co-op class for about 8 years now and will continue to do so. Great product and great service!
4 star Review by
The worms were a nice length. Wish they were wider, but we were able to see organs.
Shipping was very fast. Thank you.
Worth the Price Review by
Just as expected

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