Search Threatened Species
Explore the IUCN Red List by name, group, country, status, and population trend.
55,200 species
CR
Unicolored Tree Rat
Phyllomys unicolor
Declining1country
VU
Uniform Woodcreeper
Hylexetastes uniformis
Declining2countries
CR
Union Island Gecko
Gonatodes daudini
Stable1country
CRUntidy Earwort
Scapania cuspiduligera
Unknown
EN
Upland Burrowing Treefrog
Smilisca dentata
Declining1country
EN
Upland Forest Day Gecko
Phelsuma rosagularis
Declining1country
VU
Upland Horseshoe Bat
Rhinolophus hillorum
Declining3countries
CR
Upland Longjaw Galaxias
Galaxias prognathus
Declining1country
EN
Upper Amazon Stubfoot Toad
Atelopus seminiferus
Unknown1country
VU
Upper Crust
Amaurodon cyaneus
Unknown
VUUpper Magdalena Parakeet
Pyrrhura chapmani
Declining1country
CRUpright Chickweed
Moenchia erecta
Unknown
VU
Upright Pottia
Microbryum rectum
Unknown18countries
ENUpright Vetch
Vicia orobus
Unknown
EN
Urartuan Milkwort
Polygala urartu
Declining1country
VU
Urban Golden-backed Frog
Hylarana urbis
Declining1country
VU
Urban's Nakedwood
Colubrina verrucosa
Declining2countries
CR
Urban's Paphiopedilum
Paphiopedilum urbanianum
Declining1country
VU
Urbina Robber Frog
Pristimantis modipeplus
Declining1country
EN
Urdaneta Robber Frog
Pristimantis orestes
Declining1country
VU
Urial
Ovis vignei
Declining9countries
CR
Uribe Robber Frog
Pristimantis molybrignus
Declining1country
ENUrich's Tyrannulet
Phyllomyias urichi
Declining1country
CR
Urisa Rainbowfish
Melanotaenia urisa
Stable1country
VUUrn Hair Moss
Pogonatum urnigerum
Unknown