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Bullfrog Specimen, 5"-6", Double Injected

Ages 11+

Get a better dissection experience with a bullfrog dissection rather than grass frogs. Bullfrog specimen have larger body mass, more defined organs, and well developed muscle. So students see more and learn more! Read More

Out of Stock, Expected to Ship: 7/8/2022

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Bullfrogs provide a better dissection experience than grass frogs because of their larger body mass, better-defined organs, and well-developed muscle structure. This huge preserved bullfrog specimen in double injected and has a body length of 5"-6".

Arteries are injected with red latex and veins are injected with blue latex to easily trace the vascular system. Internal organs and muscles are easy to locate and identify. The bullfrog species is typically Rana catesbeiana.

Whether in a middle school, high school, or college biology lab, frog dissections give students memorable life science experiences and are wonderful first-time dissection specimens. Dissecting a frog is a great hands-on activity for teaching biology and environmental science in the home and science classroom.

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.

WarningWARNING: 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.


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Shipping Restriction: This item only ships to a street address in the 50 US states.
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