Frog, grass, 3.5"-4", single injected
This medium single injected preserved grass frog specimen has a body length of 3.5" to 4", large enough to see all the internal organs and external structures. The arteries are injected with red latex to make easier to trace the vascular system. The medium size and single injected vessels of this preserved grass frog specimen provide a good balance between enhanced dissection experience and cost. Genus and species is typically Rana forreri
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 can be stored almost indefinitely. We recommend that you use specimens within one year of purchase to ensure the best tissue quality. Specimen discoloration 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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- Saturday, May 04, 2013Frog DissectionReviewed By: Jodi
The frog arrived quickly and in perfect condition. It had, as listed, low odor. It was large enough that it was easy to identify the different organs. Also, the red latex injection made it easy to trace the vascular system. I took time to draw each phase of the dissection in my science notebook. I find that this helps me focus and notice all the details of the specimen. As always, an outstanding product from Home Science Tools. Recommended.
- Thursday, March 28, 2013Happy with our frogReviewed By: Melanie
My older daughter already did this dissection so all I needed was the frog specimen. This company handled my order promptly, as though this were a bulk order, and offered the best price I found online.
- Thursday, December 20, 2012Best deal I've foundReviewed By: Cara
I run a homeschool co-op, and I used to buy from another company which is well-known in our circle of friends. I came across Home Science Tools while looking for dissection specimens, and I will do all my future shopping here. Each order has been prompt, accurate, and less expensive than other sources.
These frogs were a great bargain and fantastic specimens. I wondered if they would be large enough, but I'm glad I didn't spend more to go bigger. We could see all major organs clearly, and we even found some small beetles in the stomach of one of the frogs. I was also pleasantly surprised by the lack of odor when we opened them. Fantastic product and service...will be back for our future science needs.
- Tuesday, September 18, 2012frogReviewed By: Vicki Conley
I ordered my 4 specimens separately because I already had a disecting kit. My frog was huge. He was well preserved. The shipping was fast and efficient.
- Thursday, January 26, 2012The Classic DissectionReviewed By: Jodi
This is the classic dissection nearly all students perform at some point during their schooling. I can recommend this frog for that dissection. It was larger than I expected and the red latex injected in the frog made seeing the vessels easy. I recommend purchasing "How to Dissect" from Home Science Tools, or checking it out at your local library, to aid in the dissection. All in all, a smooth dissection and a good learning experience.Read More Reviews