Shrews are small, mostly insectivorous mammals that comprise about 6.5% of all mammal species. There are 32 species of shrews found in North America including one of the only venomous mammals, the short-tailed shrew. Shrews have a very high metabolism and must eat large quantities of insects daily, thus making them valuable to agricultural areas.nnSpecifications:nnThe photos shown are examples of what your specimen will approximately look like. Each skull is unique and will vary in size, shape, color, etc.nnAverage Skull Length 2.8 cm (1.1 in.)nnOrigin: North America