Meet the world’s animals.

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• Marshall's Iora Aegithina nigrolutea

  

  Marshall's Iora shows conspicuous white edges on its tail and wings. It searches for insects in dry acacia scrub and may join mixed-species flocks after breeding.

• Leadbeater's Possum Gymnobelideus leadbeateri

  A possum of mountain eucalypt forests in Victoria that uses hollows in old trees for shelter and nesting.

• Collared Falconet Microhierax caerulescens

  The Collared Falconet is a small falcon of South and parts of Southeast Asia. It is active by day and catches insects and other small prey in flight, using open woodland, forest edges and farmland near water.

• Little Pygmy Possum Cercartetus lepidus

  A small marsupial with gray fur and a curled tail. It nests in tree hollows or under grass and feeds mainly on nectar.

• Blyth's Hawk-Eagle Nisaetus alboniger

  This forest eagle occurs on the Malay Peninsula, Sumatra, and northern Borneo. The adult male has black upperparts and a white throat and breast marked with dark streaks, and watches for prey from a perch.

• Osvaldo Reig's Tuco-tuco Ctenomys osvaldoreigi

  A burrowing rodent of the Argentine central highlands. Its back is ochre-brown, and the tail is darker above and paler below.

• Blyth's Hornbill Rhyticeros plicatus

  The Papuan Hornbill has a black body and white tail. Males have a rufous head and neck, while females are black. It feeds mainly on rainforest fruit and flies high between fruiting trees.

• Layard's beaked whale Mesoplodon layardii

  This beaked whale is recorded in cold-temperate seas of the Southern Hemisphere. It has a spindle-shaped body and slender beak, with a bluish-black to dark-purple body and white patches, according to a university species account.

• Pied Currawong Strepera graculina

  The Pied Currawong is a mostly black bird with a bright yellow eye and white markings on parts of its tail and wings. It lives from forests to suburbs in eastern Australia and can form large flocks outside the breeding season.

• Sumatran orangutan Pongo abelii

  An ape of northern Sumatra that moves through trees using its long arms.

• Northern Potoo Nyctibius jamaicensis

  With a large head and yellow eyes, it sits upright and still on a branch by day, then flies out to catch insects at night.

• Indomalayan Bamboo Rat Rhizomys sumatrensis

  This is a large, stocky bamboo rat that makes burrows. In Malaysia it emerges in the early evening to feed on fallen fruit and other plant matter.

• Sao Tome Ibis Bostrychia bocagei

  An ibis of São Tomé's lowland forests, with a glossy sheen that combines bark-brown and leaf-green colors.

• South American coati Nasua nasua

  A coati of South American forests, with an elongated flexible snout and a long ringed tail.

• Tui Prosthemadera novaeseelandiae

  This large honeyeater is endemic to New Zealand. It occurs from forest to suburban gardens and moves locally as flowering and fruiting plants change through the seasons.

• Virginia opossum Didelphis virginiana

  A North American marsupial that also uses its long tail while climbing.

• Brown-headed Cowbird Molothrus ater

  The Brown-headed Cowbird feeds on the ground in open habitats. Females do not build their own nests; they lay eggs in the nests of other birds.

• Robert's Spiny-rat Proechimys roberti

  This spiny rat occurs in central Brazil. In a habitat analysis at Brasília National Park, all nine individuals used for the microhabitat analysis were captured in dry gallery forest.

• Chowchilla Orthonyx spaldingii

  This ground-dwelling bird lives in the tropical rainforests of northeastern Queensland. Groups of about two to five defend year-round territories and search leaf litter for small animals.

• Alpine Pika Ochotona (Pika) alpina

  Ochotona alpina occurs in mountain regions of Russia, Mongolia, Kazakhstan, and China. Summer coat color varies among populations from yellowish gray to reddish brown.

• Arctic Loon Gavia arctica

  A waterbird that breeds on large lakes in northern Europe and Asia. Its breeding plumage is boldly patterned, and outside the breeding season it also uses sheltered coastal waters.

• Thick-tailed Pygmy Jerboa Salpingotus (Anguistodontus) crassicauda

  This small jerboa has a tail longer than its body and three-toed hind feet. It digs long burrows in sand dunes.

• Pale-winged Trumpeter Psophia leucoptera

  A ground-walking bird of Amazonian forest, with glossy black plumage and a broad rounded white area on the back.

• 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.