Short Tailed Shrew
There are two venomous shrews: the northern and southern short tailed shrews. The northern shrew lives in cooler latitudes and is the largest of its kind. The southern kind is the smallest and is mostly found in the South-East of the USA. These mole-like mammals grow to just 3.1 in (8 cm) tall and 1 oz (30 g) in weight. They kill small animals like insects, spiders and centipedes. But they have venom to use on animals bigger than them. Their venomous saliva can polish off larger rodents and amphibians.