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Earthworm, 8-10", plain specimen
Study the digestive, circulatory, reproductive, and nervous systems of the earthworm. Plain (not injected) preserved dissection specimen. Earthworm species is Lumbricus terrestris
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.
Note: This item only ships to the 50 US states with Economy, Ground or Express shipping options.
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- Thursday, November 14, 2013Really Big WormsReviewed By: MCook
These worms are really huge...for a worm, of course. They will be easy to dissect and the organs should be large enough for my high school freshmen to find and label. Thank you for the quick shipping too!
- Saturday, October 12, 2013Almost what we expectedReviewed By: R and B
The only thing that shocked us about this was that it arrived...wet. When you see the picture on the internet it looks like it will be rubbery but basically dry. It is sealed nice in a package but in the package there is liquid. This really made us go, "eww." It arrived as promised. We haven't done anything with it yet but are happy with the purchase. The price, time to get it and it being what was advertised, A+.
- Wednesday, September 18, 2013ExcellentReviewed By: Debbie B
HST specimens are consistently of better quality and size then other suppliers. Customer service is the best in the business and shipping times are the fastest also!
- Sunday, June 02, 2013Perfect ConditionReviewed By: Amie
These worms were great for our 5th & 6th graders first time dissecting. They were easy to cut into and the organs were easy to see. The shipping time was also great. We will be ordering more from this company for sure!
- Friday, April 26, 2013Earthworm DissectionReviewed By: Jodi
By carefully dissecting this earthworm, you can view its digestive, circulatory, reproductive, and nervous systems. Purchase the guide and dissection tools separately, and be sure to add extra pins, as they are invaluable. Dissection teaches attention to detail, careful following of directions, and respect for the life of the specimen. It is truly wondrous to see how intricate even the lowly earthworm is. Recommended.Read More Reviews