The red-toothed shrews of the subfamily Soricinae are one of three living subfamilies of shrews, along with Crocidurinae and Myosoricinae. In addition, the family contains the extinct subfamilies Limnoecinae, Crocidosoricinae, Allosoricinae and Heterosoricinae. These species are typically found in North America, northern South America, Europe and northern Asia. The enamel of the tips of their teeth is reddish due to iron pigment. The iron deposits serve to harden the enamel and are concentrated in those parts of the teeth most subject to wear. Members of the genera Chimarrogale, Nectogale, Neomys (Nectogalini) and some members of Sorex (Soricini) are known as water shrews, due to having a semi-aquatic lifestyle.
Crawford's gray shrew, also known as the desert shrew, is a small shrew found in the southwestern United States and northern Mexico. It is a member of the family Soricidae of the order Eulipotyphla. It was the only known member of the genus Notiosorex until two species, N. villai distributed in the Mexican state of Tamaulipas, and N. evotis distributed along the northwest coast of Mexico, were named. A fourth distinct species, N. cockrumi, was discovered in the U.S. state of Arizona and named in 2004.
Bendire's thrasher is a medium-sized species of thrasher native to the southwestern United States and northwestern Mexico. It is 23–28 centimetres (9.1–11.0 in) long, with a long tail and a medium-sized bill. Coloration is grayish-brown on its upperparts with paler, faintly dark streaked underparts. The base of the lower bill is often pale, the eyes are bright yellow, and the tips of the tail are white-tipped.
Cenchrus ciliaris is a species of grass native to most of Africa, southern Asia, southern Iran, and the extreme south of Europe (Sicily). Other names by which this grass is known include dhaman grass, anjan grass, koluk katai and buffelgrass.
Notiosorex is a genus of shrew from the subfamily Soricinae.
Villa's gray shrew is a shrew native to northeastern Mexico, where it is called musaraña.
The greater long-nosed bat or Mexican long-nosed bat is a species of bat in the family Phyllostomidae. It is found in Mexico and the United States. It chiefly consumes pollen and nectar, particularly from agave plants and cacti. Its habitat includes desert scrub and open woodlands, however, it is threatened by habitat loss.
Stenocereus gummosus is a flowering plant in the family Cactaceae that is found in Baja California, Mexico at elevations of 9 to 134 meters
Notiosoricini, whose members are known as the North American gray shrews, is a tribe of shrews in the family Soricidae, including the genera Megasorex and Notiosorex. They are found across the southwestern United States and most of Mexico.
