While shrews are evasive and rarely seen, these small insectivorous mammals are very abundant. One species, the greater white-toothed shrew (Crocidura russula) is particularly successful: it is expanding in Europe and has been identified as having an invasive character in some islands, namely in Ireland. It is therefore fundamental to understand how this species rapidly adapts to new environments—for example, to urban areas—to better predict its pace of expansion.
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Source: Phys.org