Search Threatened Species
Explore the IUCN Red List by name, group, country, status, and population trend.
55,200 species
CR
Worm-rooted Buttercup
Ranunculus vermirrhizus
Unknown1country
ENWormwood Knot-horn
Euzophera cinerosella
Unknown24countries
EN
Woronow's Centaury
Centaurea woronowii
Unknown1country
ENWorthen's Sparrow
Spizella wortheni
Declining2countries
CRWoundfin
Plagopterus argentissimus
Declining1country
EN
Woven-spore Lichen
Texosporium sancti-jacobi
Declining1country
VU
Wreathed Hornbill
Rhyticeros undulatus
Declining10countries
VU
Wright's catkin mistletoe
Antidaphne wrightii
Unknown
CRWright's Gardenia
Rothmannia annae
Declining1country
VU
Wright's laurel canelon
Ocotea wrightii
Unknown
VU
Wright's Skink
Trachylepis wrightii
Stable1country
EN
Wright's Sportive Lemur
Lepilemur wrightae
Declining1country
CR
Wrinkle-necked Brush Tiger Beetle
Neocollyris rugata
Unknown
EN
Wrinkled Hornbill
Rhabdotorrhinus corrugatus
Declining5countries
ENWrinkled Peach
Rhodotus palmatus
Unknown34countries
VUWrinkled slime star
Pteraster militaris
Unknown16countries
VUWrinkled Webcrust
Hyphodermella corrugata
Unknown
VU
Wrybill
Anarhynchus frontalis
Declining1country
EN
Wubin Mallee
Eucalyptus wubinensis
Stable1country
VU
Wuchuan Frog
Odorrana wuchuanensis
Declining1country
VUWulf's Peat Moss
Sphagnum wulfianum
Unknown
CR
Wuppertal Spiderhead
Serruria flava
Declining1country
EN
Wuxi Treefrog
Zhangixalus hongchibaensis
Unknown1country
VU
Wylie Scarp mallee
Eucalyptus diversifolia
Stable1country
EN
Wynad Day Gecko
Cnemaspis wynadensis
Unknown1country