136 long-clawed shrew skulls from Hokkaido showed the classic winter flattening of the braincase, and across the same series the snout enlarged in winter and shrank again in spring

136 long-clawed shrew skulls from Hokkaido showed the classic winter flattening of the braincase, and across the same series the snout enlarged in winter and shrank again in spring

A museum series of Sorex unguiculatus from Tomakomai confirms Dehnel's winter braincase shrink in an Asian shrew, and adds a reverse pattern in the snout that the authors did not find in the jaw.