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Pygmy Shrew

If you couldn't tell from the name, the Pygmy Shrew is a tiny little guy, typically measuring less than 2in (52mm). They also weigh next to nothing, at a whopping .14oz (4g)! They are found across Europe and Asia and are one of the world's smallest mammals.

(Image Source)
Pygmy Shrews are so tiny that they aren't even able to hibernate; they have nowhere to store any fat reserves. They also have ridiculously fast metabolisms which force them to consume 125% of their own body weight every single day. Pygmy Shrews eat invertebrates like spiders, grasshoppers, and beetles.

Females give birth to multiple litters each year, each containing 4-7 young. They age quickly, and only live about a  year and a half at the maximum.

Pygmy Shrews are listed as being of least concern. Their population is stable, but their small size does make them susceptible to environmental changes.
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