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.nSkulls Unlimited’s Bag-Os contain a variety of misfit skulls, bones, teeth, feathers, horns, etc. These sets are perfect for arts and crafts, studying comparative anatomy and more!nnSpecifications:nnThis Bag-O contains an assortment of 4 shrew skullsnThe photos shown are examples of what your specimen will approximately look like. Each Bag-O is unique and contents will vary in species, size, severity of damage, color, etc.nSkulls will exhibit damage