Meet the world’s animals.

Photos: 12,636 · Stories: 19,540

• Caatinga Laucha Calomys expulsus

  

  The Caatinga Laucha is a vesper mouse from central and northeastern Brazil. It occurs in open grasslands and forest edges in the Cerrado and Caatinga, as well as cultivated fields, and lives on the ground and eats seeds.

• Bornean Mountain Ground Squirrel Dremomys everetti

  

  This squirrel occurs in the mountains of Borneo. Stomach contents from 26 Mount Trus specimens were mostly insects, with fruit, nuts, leaves, and shoots also recorded. The current Mammal Diversity Database uses Sundasciurus everetti, while ADW retains the older genus.

• Magdalena Rat Xenomys nelsoni

  

  The Magdalena rat lives in dry forests on Mexico's Pacific coast. It is arboreal and nocturnal, usually solitary, and feeds on leaves, buds, and fruit.

• Siberian chipmunk Tamias (Eutamias) sibiricus

  

  A chipmunk of northern Asian forests that uses both the ground and trees.

• Meadow Vole Microtus (Mynomes) pennsylvanicus

  

  The meadow vole occurs widely in North American grasslands and wetlands and favors places where grass remains.

• Ear-spot Squirrel Callosciurus adamsi

  

  The ear-spot squirrel lives on Borneo. A pale patch behind each ear is a useful identifying feature.

• Collared Lemming Dicrostonyx groenlandicus

  This stocky Arctic lemming has a thick coat that changes with the seasons, becoming white in winter.

• Asian Red-cheeked Squirrel Dremomys rufigenis

  The Asian red-cheeked squirrel ranges from southern China across parts of northern South and Southeast Asia. It forages both on the ground and in trees.

• Savi's Pine Vole Microtus (Terricola) savii

  This vole has reddish-brown fur and a short tail. It makes underground galleries and lives in colonies in grassland and around fields.

• Indochinese Ground Squirrel Menetes berdmorei

  This diurnal squirrel spends most of its time on the ground. It has a gray-brown back, a pale underside, and flank stripes that vary among subspecies.

• Rock Mouse Peromyscus difficilis

  The Rock Mouse is listed from Mexico in the current mammal database. A 2010 species account describes large ears and a bicolored tail slightly longer than the head and body.

• Olympic Marmot Marmota (Petromarmota) olympus

  The Olympic marmot lives only in Olympic Mountain meadows. It eats flowering plants, stores fat and hibernates for a long period.

• Zacatecan Harvest Mouse Reithrodontomys (Reithrodontomys) zacatecae

  The Zacatecan harvest mouse has a reddish-brown back and a relatively long tail. In Jalisco, it is recorded in high temperate areas.

• Bangs's Mountain Squirrel Syntheosciurus brochus

  Bangs's mountain squirrel is a tree squirrel reported from the highlands of Costa Rica and Panama. A study in Costa Rica observed it feeding on flowers, sap, and bromeliads.

• Orizaba Deermouse Peromyscus beatae

  The Orizaba Deermouse ranges from southeastern Mexico into Central America. It has been recorded in humid mountain forests.

• Mindanao Flying Squirrel Petinomys mindanensis

  This flying squirrel occurs in the southern Philippines. It is nocturnal and moves among trees in wet tropical and subtropical forests.

• Golden Mouse Ochrotomys nuttalli

  This small mouse has golden upper fur, a white underside and feet, and a tail it can use while climbing.

• Richardson's Ground Squirrel Urocitellus richardsonii

  Richardson's Ground Squirrel is a ground-dwelling squirrel of the northern Great Plains. It digs underground burrows and hibernates through the cold season.

• Mexican Woodrat Neotoma (Neotoma) mexicana

  The Mexican woodrat has a gray-brown back, a pale underside, and a two-tone tail. It nests in rocky crevices and is solitary and mostly active at night.

• Rock Squirrel Otospermophilus variegatus

  The rock squirrel lives among rocky sites and burrows, eating plant foods and small animals that vary with the season.

• Southern Bog Lemming Synaptomys (Synaptomys) cooperi

  The southern bog lemming is a small rodent of moist places in eastern North America. It uses underground burrows and surface runways, and builds nests from grass and leaves.

• Northern Gray-bellied Squirrel Callosciurus caniceps

  Its coat changes with region and season, and the tail tip is black. From southern Myanmar through Thailand, it uses forests as well as bamboo-rich places and gardens.

• White-bellied Akodont Akodon (Akodon) albiventer

  The white-bellied akodont is a small rodent of the Andean highlands. Its grizzled-grey back contrasts with a white belly, and most records come from 3,000–4,500 m.

• Barbary Ground Squirrel Atlantoxerus getulus

  The Barbary ground squirrel is a striped, ground-dwelling squirrel of rocky northwestern Africa. It digs burrows and can live socially.