Meet the world’s animals.

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• Samoan Whistler Pachycephala flavifrons

  

  This whistler is found on Samoan islands. Males have yellow underparts, while females are paler above with a gray throat.

• Santander dwarf squirrel Microsciurus santanderensis

  The Santander dwarf squirrel is a small forest squirrel from Colombia. Orange and black fur is reported, but taxonomic confusion leaves its ecology poorly known.

• Little Rush Warbler Bradypterus baboecala

  The Little Rush Warbler lives in wetlands with reeds and sedges. The broad taxonomic treatment includes several subspecies, some of which are treated as separate species elsewhere.

• Dusky Melanomys Melanomys caliginosus

  The dusky melanomys is a rodent of forests in western Colombia and southwestern Ecuador. Its back is generally dark, although coat color varies geographically. The 2017 species account says its broad taxonomic concept needs further revision.

• Ancash Tapaculo Scytalopus affinis

  It is endemic to Peru and recorded on the western Andean slope at 3,000–4,600 m. It feeds at or near the ground, but is difficult to distinguish from similar tapaculos; range and voice are useful identification clues.

• Red Bush Squirrel Paraxerus palliatus

  This diurnal squirrel occurs in coastal forests from East to southern Africa. It eats fruit and nuts, and regional forms differ in coat shade and body size.

• Slaty Becard Pachyramphus spodiurus

  A tityrid of the foothills of northwestern Peru. Males are dark, females cinnamon-rufous, and pairs use the upper levels of semi-deciduous forest.

• Hairy-eared Akodont Thalpomys lasiotis

  This small rodent occurs in the Cerrado of central Brazil. Most capture records are from open grassland, including sites with scattered low shrubs.

• Bismarck Crow Corvus insularis

  The Bismarck Crow is endemic to the Bismarck Archipelago off northeastern New Guinea. It has glossy black plumage and pale blue eyes and searches for varied food on the ground.

• 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.

• Orange-breasted Waxbill Amandava subflava

  A small passerine with an orange-red breast, it feeds on grass seeds in wetlands and dry savannas of equatorial Africa.

• Little Laucha Calomys laucha

  The Little Laucha is a small South American rodent weighing under 20 g. A study in central Argentine farmland reported a diet mainly of green plant material and seeds.

• White-throated Needletail Hirundapus caudacutus

  The White-throated Needletail is a large swift with long wings and needle-like tail feathers. It catches insects and drinks while flying, and moves seasonally between northeast Asia and eastern Australia.

• Uinta Chipmunk Tamias (Neotamias) umbrinus

  This chipmunk occurs in mountains of the western United States. It has long, pointed ears and prefers montane coniferous forest.

• White-streaked Honeyeater Trichodere cockerelli

  This honeyeater lives in northeastern Australia. Field reports describe feeding at flowering eucalyptus and banksia in two Queensland locations.

• Medium-tailed Rice Rat Eremoryzomys mesocaudis

  This rodent was described from the Marañón River region of northern Peru. A black line at the center of the nose tip is one of its diagnostic features.

• Rhinoceros auklet Cerorhinca monocerata

  A seabird that develops a horn-like projection on its bill during breeding.

• Western Dwarf Squirrel Microsciurus mimulus

  This small squirrel has reddish or olive tones mixed into its dark back. It is active by day, uses trees and the ground, and feeds on tree sap and insects.

• Black-faced spoonbill Platalea minor

  A waterbird that sweeps its spoon-shaped bill from side to side in shallow water.

• Arctic Lemming Dicrostonyx torquatus

  The Arctic lemming is a small rodent of the Eurasian tundra. Its coat is grayish in summer and white in winter, and it may store foods such as willows.

• Variable Pitohui Pitohui kirhocephalus

  The Variable Pitohui lives in forests of New Guinea and nearby islands. The color of its head and throat varies among subspecies, and it eats fruit and insects.

• Long-tailed Ground Squirrel Urocitellus undulatus

  The long-tailed ground squirrel is a medium-sized, ground-dwelling squirrel of Central Asia. A Mongolian study found several genetically distinct regional groups.

• Spectacled Parrotbill Suthora conspicillata

  A small bird of the mountains of central China, it has white rings around the eyes that look like spectacles. Small groups search among shrubs and forest edges.

• Cerrado Akodont Thalpomys cerradensis

  This small rodent lives in Brazil’s Cerrado. It is terrestrial and most active after sunset and in the hours before sunrise.