Meet the world’s animals.

Photos: 12,768 · Stories: 19,540

• Greater Antillean Grackle Quiscalus niger

  

  This grackle occurs widely across the Greater Antilles. Males are glossy and dark, while females are browner; the birds also search for food in towns.

• Pinyon Mouse Peromyscus truei

  The pinyon mouse has coat colors ranging from yellow-brown to dark gray above. It ranges from central Oregon to southern Mexico and is active at night, when it can climb well.

• Chaco Eagle Buteogallus coronatus

  The Chaco Eagle has a prominent crest and inhabits savannas and open woodland in Argentina.

• Black-eared Squirrel Nannosciurus melanotis

  A juvenile found in West Kalimantan had a pale-gray back with black, buff, and whitish facial stripes. A nest was found among branches in nearby lowland heath forest.

• Pearled Treerunner Margarornis squamiger

  This Andean bird has a yellowish-buff eyebrow, chestnut upperparts, and a cream throat. It uses upper subtropical and temperate forests and woodland and feeds mostly on arthropods.

• Cloud Forest Rice Rat Oryzomys saturatior

  Its back is cinnamon brown heavily mixed with black, and its underside is ochre buff. It lives in cloud forest from southern Mexico through northern Central America, at 750–2,500 m.

• Flat-billed Vireo Vireo nanus

  This small vireo is endemic to Hispaniola. With a broad, flattened bill, it moves low through scrub and thickets in limestone dry forest while looking for fruit and insects.

• Townsend's Chipmunk Tamias (Neotamias) townsendii

  It has stripes on its back and face, with ears black in front and gray behind. It lives in Pacific Northwest hardwood and conifer forests, often using riparian or shrub-rich cover and rocky slopes for nesting.

• Elegant Crested Tinamou Eudromia elegans

  The Elegant Crested Tinamou has a long backward-swept crest and dark streaks on gray plumage. It searches the ground for seeds, fruit, and small animals.

• Chiriqui brown mouse Scotinomys xerampelinus

  This singing mouse lives in the high mountains of Costa Rica and Panama. A research lab describes singing mice as diurnal insect-eaters.

• Arabian Lark Eremalauda eremodites

  The Arabian Lark is a large-billed lark of sandy deserts and open arid plains on the Arabian Peninsula. It runs along the ground while feeding, occurring singly or in pairs when breeding and in larger groups outside the breeding season.

• Mutable Sun Squirrel Heliosciurus mutabilis

  The Mutable Sun Squirrel occurs in forests and savannas of eastern Africa. It is active by day and forages both in trees and on the ground.

• Black Guillemot Cepphus grylle

  A seabird of northern rocky coasts that catches fish and other prey; its plumage changes with the season.

• Arizona Cotton Rat Sigmodon (Sigmodon) arizonae

  The Arizona cotton rat is a large rodent of the southwestern United States and northwestern Mexico. It has dark brown-black fur above and silver or white fur below.

• Sulphur-crested cockatoo Cacatua galerita

  A large white cockatoo recognized by its yellow crest.

• Yucatan Squirrel Sciurus (Sciurus) yucatanensis

  This squirrel lives around the Yucatán region and forages in trees and on the ground by day.

• Hispaniolan Trogon Priotelus roseigaster

  The Hispaniolan Trogon is the only trogon on Hispaniola. It has metallic green upperparts, a gray breast, and a red belly.

• Montane Vole Microtus (Mynomes) montanus

  This vole lives in grasslands and alpine meadows of western North America and remains active beneath snow in winter.

• Warbling white-eye Zosterops japonicus

  A small yellow-green bird of Japanese woods and gardens. A white ring around the eye gives it its name.

• Slender Squirrel Sundasciurus (Sundasciurus) tenuis

  The slender squirrel has olive-brown upperparts and tail with gray underparts. It lives in trees and takes both plant and animal foods by day and night.

• Sooty Falcon Falco concolor

  The Sooty Falcon has long, narrow wings. After breeding, it migrates across eastern Africa to Madagascar for the southern summer.

• Black-footed Colilargo Oligoryzomys nigripes

  The black-footed colilargo is a small rodent with a tail longer than its head and body combined and relatively short, broad hind feet. A southern Brazilian forest study found it associated with dense scrub.

• Blue Pitta Hydrornis cyaneus

  The Blue Pitta lives in forests of South and Southeast Asia and searches for food on the forest floor. Males are vivid blue, while females are mainly brown.

• Amazon Dwarf Squirrel Microsciurus flaviventer

  The Amazon dwarf squirrel has a brownish back, orange chest, and pale-tipped tail shorter than its body. By day it moves along forest trunks and vines while searching for insects and palm fruits.