Shrews (family Soricidae) are small mole-like mammals classified in the order Eulipotyphla. True shrews are not to be confused with treeshrews, otter shrews, elephant shrews, West Indies …

2020年6月19日 · Shrews are notable for their voracious appetites, frenetically rapid foraging behaviour, short lifespans (typically less than 1.5 years), formidable pointed teeth and flexible …

2024年11月15日 · Brain and Skull. They have long and narrow skulls lacking zygomatic arches, auditory bullae, and postorbital processes. The tympanic bone is distinctively ring-shaped, and …

2017年10月25日 · As Bret Stetka at Scientific American reports, during the winter the skulls of the common shrew— Sorex araneus, which is found in Britain, Europe and parts of Asia—actually …

The skulls of shrews are long and narrow, usually with a flat profile. They lack zygomatic arches, auditory bullae, and postorbital processes. The tympanic bone is distinctively annular (ring …

The common shrew offers a unique opportunity to link the ontogeny of skull and brain to external triggers, which will ultimately reveal the evolutionary drivers that determine skull and brain size …

2017年10月23日 · The researchers captured X-ray images that recorded the shrunken and recovered states of the shrews' skulls and brains, finding that the animals' heads contracted by …

2024年12月18日 · In the fossil record, shrews are usually known only from fragmentary jaws and teeth. A new, 33-million-year-old fossil from Wyoming is much more complete and shows the …

2017年10月23日 · A shrinking skull would be fatal to most animals, but not to this red-toothed shrew (Sorex araneus, pictured). The head of this tiny mammal shrinks by up to 20% every …

2017年10月23日 · Individual wild common shrews (Sorex araneus) captured and tagged in Germany showed large reductions in skull size and body mass over the winter. Their spines …