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.
Average Skull Length 2.8cm (1.1in)
Origin: North America