Real rat skull set from the Museum of Osteology collection, featuring museum provenance with handwritten documentation on cranium and mandible. This piece preserves original archival markings and is sold as-is without additional cleaning, maintaining its historical integrity. Ideal for comparative anatomy study, educational display, or serious skeletal collections. A genuine research-grade specimen with documented museum origins. The term "rat" applies to the larger members of the Muridae family. Rats are distinguished from mice by their size comparison. The most common rat species are the black rat and the brown rat, which live everywhere in the world except for Antarctica. Specifications: This specimen is from our Museum of Osteology collection. Exhibits handwritten verbiage on both the cranium and mandible. Sold as-is without further cleaning Hispid cotton rat does not sit right on its mandible; will need support for display Photographed from left to right: Merriam's Kangaroo Rat, Ord's Kangaroo Rat, Hispid Cotton Rat Merriam's Kangaroo Rat Skull Dimensions: Skull Length 3.5 cm (1.4 in) Skull Width 2.4 cm (0.9 in) Skull Height 1.3 cm (0.5 in) Ord's Kangaroo Rat Skull Dimensions: Skull Length 3.8 cm (1.5 in) Skull Width 2.3 cm (0.9 in) Skull Height 1.4 cm (0.6 in) Hispid Cotton Rat Skull Dimensions: Skull Length 3.1 cm (1.2 in) Skull Width 1.9 cm (0.7 in) Skull Height 1.6 cm (0.6 in)