Eurasian Water Shrew
While all other venomous mammals live in Asia, America or somewhere else, the eurasian water shrew is the only European mammal in this category. They have glands under their tongues that transport the venom to their teeth. Thanks to their rudder-like tails, they are skilled divers and can even catch prey under water, such as small crabs, snails, water-dwelling insects and fish. Although they’re the largest shrews in Europe, they only grow to be 96mm long and 0.88 oz (25 g) in weight.