Insectivorous mammal (about 20 species) found in Eurasia and the Americas; it digs underground tunnels with its front limbs to reach its food.
hedgehog
Insectivorous mammal of Eurasia (about 10 species) with a body usually covered with stiff hairs or barbs, which stand on end when it rolls itself into a ball for protection.
shrew
Widespread insectivorous mammal (about 200 species); it occasionally digs tunnels and emits a fetid secretion for protection.
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