Meet the world’s animals.

Photos: 12,636 · Stories: 19,540

• Alston's Mouse Opossum Marmosa (Micoureus) alstoni

  

  Alston's mouse opossum has a dull gray-brown back. The 2021 revision places the specimens and photographs it could confirm in Costa Rica's central highlands.

• Yellow-rumped Honeyguide Indicator xanthonotus

  

  The Yellow-rumped Honeyguide occurs in Asia, mainly along the Himalayan foothills. Its orange forehead and rump stand out, and it feeds on beeswax and insects.

• Mottle-faced Tamarin Tamarinus inustus

  

  This tamarin was recorded in flooded forest during fieldwork in Brazil’s Amanã Reserve. The survey reported 11 new localities.

• White-cheeked Bushtit Aegithalos leucogenys

  

  The White-cheeked Tit is a small bird, about 11 cm long. Its white cheek patch and black bib stand out; it lives in dry scrub and open woodland in northeastern Afghanistan and Pakistan.

• Columbia Plateau Pocket Mouse Perognathus parvus

  

  The Columbia Plateau pocket mouse is a small North American rodent that carries seeds in fur-lined cheek pouches. Its back is pinkish buff with a dark overlay, and its tail is long and bicolored.

• Common Chiffchaff Phylloscopus collybita

  

  A small yellow-olive warbler that eats insects. In Britain and Ireland it breeds in deciduous woodland, scrub, and similar habitats.

• Columbian Ground Squirrel Urocitellus columbianus

  The Columbian ground squirrel lives in groups in western North American grasslands and alpine meadows. It is known for a long hibernation.

• Nacunda Nighthawk Chordeiles nacunda

  The Nacunda Nighthawk lives in open habitats in northern and eastern South America, catching insects in flight around dusk.

• Bridled Nail-tail Wallaby Onychogalea fraenata

  The bridled nail-tail wallaby is marked by a white stripe that runs from the neck toward the forearms. It shelters by day and emerges to feed in open grassland before dusk.

• Ash-throated Gnateater Conopophaga peruviana

  The Ash-throated Gnateater feeds on small arthropods in humid lowland forest. The described male has brown upperparts and white tufts behind the eyes.

• Eastern quoll Dasyurus viverrinus

  A spotted marsupial that searches for insects and other food at night.

• Yellow-bellied Bush Warbler Horornis acanthizoides

  This small warbler breeds in highland forests of mainland China; a separate subspecies is recorded in Taiwan. It stays hidden in dense bamboo undergrowth during the breeding season, when its song can reveal its presence.

• Chihuahuan Deermouse Peromyscus polius

  The Chihuahuan Deermouse is a small rodent reported only from west-central Chihuahua, Mexico. A 2023 state-level mammal chapter says its ecology is poorly known and records are sparse.

• Scarlet-shouldered Parrotlet Touit huetii

  The Scarlet-shouldered Parrotlet is a small parrot of forests in northern South America and Trinidad, and it may move in flocks.

• Bay Cat Catopuma badia

  The Bornean bay cat is a rarely detected wild cat of Borneo’s forests. Records exist, but much about its diet and way of life remains unknown.

• Mountain Quail Oreortyx pictus

  The Mountain Quail is a western North American quail with long, slender head plumes. It uses mountain forests and brush at lower elevations in different seasons.

• Gray Bat Myotis (Pizonyx) grisescens

  The gray bat inhabits limestone regions of the Midwestern and southeastern United States. It uses caves as seasonal roosts and catches insects over water.

• Palau Greater White-eye Megazosterops palauensis

  This white-eye is endemic to Palau. It lives in limestone forest and vine thickets, feeding in the upper canopy on insects, fruit, and nectar.

• Stoliczka's Asian Trident Bat Aselliscus stoliczkanus

  Stoliczka's trident bat has a three-pointed noseleaf and has been recorded roosting in caves in Yunnan.

• Masked Gnatcatcher Polioptila dumicola

  The Masked Gnatcatcher searches woodland and scrub for small insects. Males have a black facial mask; females have a white eye-ring and cheeks.

• Rufous Dog-faced Bat Molossops neglectus

  This bat has reddish dark-brown fur and feeds on flying insects. Its records are separated between northern and southeastern South America, and southern specimens have tended to be smaller than northern ones.

• Ortolan Bunting Emberiza hortulana

  The Ortolan Bunting is a bunting whose breeding male has a grayish-olive head and yellow throat. It feeds on seeds on the ground, but mainly on invertebrates during breeding.

• Common Tsessebe Damaliscus lunatus

  An antelope described in a Marakele National Park account from South Africa, living in open savanna woodland and nearby grassland.

• Black Tern Chlidonias niger

  The North American subspecies of Black Tern flies over freshwater wetlands during breeding and catches small fish and insects.