Earthworm Specimen, 9-12", Plain

This preserved earthworm dissection specimen is an extra-large 9-12” size, making it easier to dissect and study the digestive system, circulatory system, reproductive system, and nervous system of an earthworm. The earthworm species is Lumbricus terrestris (nightcrawler).

Earthworms are interesting invertebrates that help decompose organic matter/organic materials and recycle nutrients in different ecosystems. Earthworm dissections provide a memorable and engaging way for both students and educators to bring their anatomy, zoology, or ecology studies to life.

An excellent and engaging biology activity for elementary, middle, and high school students, an earthworm dissection is easiest when you have all of the right tools and lab equipment!

Order our Earthworm Dissection Kit to get an earthworm dissection specimen, dissection guide, styrofoam dissecting pan, dissecting scissors, forceps, and T-pins all in one box! From its anterior end to its posterior end, use this kit to easily identify an earthworm's pharynx, heart, aortic arches, intestine, crop, gizzard, seminal vesicles & receptacles, septa, ventral nerve cord, ventral blood vessel, dorsal blood vessel, prostomium & more.

Hoping to dissect other specimens, along with an earthworm?

• Our 5-star Introductory Dissection Kit comes with an earthworm, frog, and grasshopper specimen;
• Our Intermediate Dissection Kit has these 3 specimens, PLUS a starfish, crayfish, perch, and clam specimen; and
• Our Advanced Dissection Kit has these same 7 specimens, PLUS a fetal pig and Grantia (sponge) specimen.

All of these kits come with dissection guides and equipment (scalpels, trays, scissors, etc.) for dissecting the specimens inside.

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.

HST Specimen Guarantee

In sealed, original packaging, our preserved specimens are guaranteed to remain fully preserved and free of decay for six months from the date of purchase.

Once the original package is opened, use specimen within one month. For best results, observe the following storage procedures:

• Store specimen in heavy-duty, zip-lock bags to minimize drying between dissections.
• Specimen will slowly dry out or become contaminated in zip-lock bags; add a teaspoon of Specimen Holding Fluid to retain moisture.
• Freezing or refrigeration is not necessary and may damage fragile tissues.

WARNING: This product can expose you to chemicals including Formaldehyde, which is known to the State of California to cause cancer, and Methanol, which is known to the State of California to cause birth defects or other reproductive harm.

More Information

• SDS Information