Real Mountain Beaver Baculum

This Real Mountain Beaver baculum represents a rare anatomical specimen from one of North America's most primitive rodents. This delicate bone offers collectors and educators an authentic example of mammalian reproductive anatomy and serves as a tangible connection to evolutionary biology. Ideal for comparative anatomy studies, museum collections, or specialized anatomical displays.

Mountain beavers (Aplodontia rufa), not a true beaver, are heavy-bodied rodents with short limbs. They are considered the most primitive living rodent. The skull reflects these primitive traits in that it is flattened overall and the auditory bullae, or ear bones, are flask-shaped. This unusual skull allows a view into the distant past of rodents as well as mammals in general.

• Baculum Length 1.9 cm (0.7 in)
• Baculum Width 0.6 cm (0.2 in)
• Baculum Height 0.4 cm (0.2 in)