Meet the world’s animals.

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• Dusky Nightjar Antrostomus saturatus

  

  The Dusky Nightjar is a dark-plumaged highland nightjar. In Costa Rica it nests at forest edges and occurs in high elevations of the Central Volcanic and Talamanca ranges and other highlands.

• Pagai Island Macaque Macaca pagensis

  This macaque has dark brown fur on its back, paler fur underneath, and cheek pouches. It is active by day and uses both the ground and trees.

• Nuttall's Woodpecker Dryobates nuttallii

  Nuttall's Woodpecker is a small woodpecker found in California's woodlands. It searches trunks and small branches for insects beneath the bark.

• Round-tailed Ground Squirrel Xerospermophilus tereticaudus

  The round-tailed ground squirrel lives on sandy desert flats, dunes, and wash edges. It mainly eats green vegetation, with seeds and insects added seasonally.

• African Golden Weaver Ploceus xanthops

  The African Golden Weaver is a weaver of sub-Saharan Africa. In breeding plumage, males have chestnut coloring from the face onto the breast; females are duller.

• Dark Fruit-eating Bat Artibeus (Artibeus) obscurus

  This fruit-eating bat has been recorded in the Atlantic Forest of southeastern Brazil. Its dorsal and ventral fur is subtly two-toned, and the forearm is densely furred.

• Four-banded Sandgrouse Pterocles quadricinctus

  This sandgrouse has sandy plumage crossed by dark bands. It occurs in dry savanna and cultivated areas, alone in pairs or small groups.

• Elegant Oryzomys Euryoryzomys nitidus

  The Elegant Oryzomys is a terrestrial rodent of humid forests in western Amazonia. Its tawny back and tail nearly as long as its body are noted in the species account.

• White-winged Black Tit Melaniparus leucomelas

  The White-winged Black Tit is a small bird of open acacia and broadleaf woodland. Its black body contrasts with white wing patches, and it moves in pairs or small groups.

• Chestnut Rat Niviventer fulvescens

  The chestnut rat uses both the ground and trees. It occurs in forests as well as secondary growth and gardens, and its coat color varies across its range.

• Black-thighed Puffleg Eriocnemis derbyi

  The Black-thighed Puffleg is an Andean hummingbird with metallic green and bronze plumage. The sexes differ in their leg feathers and underparts, and detailed breeding records remain limited.

• Muskox Ovibos moschatus

  A long-coated, herd-living bovine of Arctic tundra.

• White-bibbed Manakin Corapipo leucorrhoa

  This manakin lives in humid foothill forest in Colombia and Venezuela. Males perform courtship displays on fallen trunks low in the forest.

• Clear-winged Woolly Bat Kerivoula pellucida

  The clear-winged woolly bat is a small bat with pale fur and nearly translucent wing membranes. It occurs on islands in Southeast Asia, with records of roosting in dead leaves.

• Black-throated Wren Pheugopedius atrogularis

  The Black-throated Wren is a resident of lowlands and foothills in Costa Rica. Adults have a black face, throat, and chest, with chestnut-brown upperparts.

• Crested Mona Monkey Cercopithecus pogonias

  The crowned guenon is notable for its crest of hair and lives mainly in the trees of western Central African forests.

• Silver-backed Needletail Hirundapus cochinchinensis

  This large swift has long, pointed wings and catches insects in flight. It is recorded in Hong Kong as a passage migrant.

• Arrow Flying Squirrel Hylopetes sagitta

  This flying squirrel is reported from Java and Bangka. At Mount Ungaran in Central Java, a paper documented nighttime activity in October 2024; the three animals observed were mainly in trees.

• Royal Penguin Eudyptes schlegeli

  The Royal Penguin breeds on Macquarie Island and nearby islets. Its pale face and yellow crest that meets over the forehead are distinctive.

• Gray Short-tailed Bat Carollia subrufa

  The gray short-tailed bat is a small bat recorded in the dry-forest region of northwestern Nicaragua. A local field survey found both males and females in March.

• Cream-throated White-eye Zosterops atriceps

  The Cream-throated White-eye occurs in Indonesia's North Maluku islands. A 2010 survey recorded it on Obi, where the observers heard it often but saw it only occasionally.

• Hairy-tailed Akodont Necromys lasiurus

  The hairy-tailed akodont is a small rodent found in central South America. It lives mainly in grasslands and savannas and eats mostly seeds, though insects can become more important after dry-season fires.

• Caspian Tern Hydroprogne caspia

  The world's largest tern, with a large red bill. It pursues fish along coasts and on inland lakes and rivers.

• Wagner’s Gerbil Dipodillus (Petteromys) dasyurus

  Wagner’s Gerbil is currently listed as Gerbillus dasyurus. A Saudi Arabian field guide describes it in rocky terrain and limestone escarpments, where it shelters among rocks or under bushes and feeds mainly on seeds and succulent plants.