Best Threatened
Updated Daily
The California red-legged frog (Rana draytonii) is a moderate to large amphibian endemic to California and Baja California, recognized as the largest native frog in the western United States. It inhabits ponds, marshes, and streams, relying on dense vegetation for cover. Due to habitat loss, water p...
The Steller’s Eider is a sea-duck native to the Arctic regions of Russia and Alaska. It’s notable for its small size among eiders and possesses distinctive black and white plumage on males. This species faces threats due to habitat loss and population declines. Researchers, conservationists, and bir...
The Spectacled Eider is a sea duck found in Arctic regions, particularly coastal Alaska. Its distinctive pale green eye patches are unique among eiders and make it easily identifiable. This species faces significant threats due to habitat loss and population decline. Scientists and researchers study...
The Red Hills Salamander (Phaeognathus hubrichti) is a large, terrestrial lungless salamander in the family Plethodontidae. It is strictly endemic to the Red Hills region of south-central Alabama, where it inhabits steep, moist, shaded slopes dominated by hardwood trees. The species is classified as...
The Vietnamese crocodile newt (Tylototriton vietnamensis) is a species of salamander in the family Salamandridae, first scientifically identified in 2005 and endemic to the subtropical forests of northern Vietnam. The amphibian features a predominantly black body covered in prominent, rough rib nodu...
The marbled teal (Marmaronetta angustirostris) is a threatened duck of Mediterranean and Asian wetlands, notable as the sole species in its genus.
The Jollyville Plateau Salamander (Eurycea tonkawae) is a federally threatened, permanently aquatic amphibian belonging to the family Plethodontidae. It is endemic to the karst geology of the Jollyville Plateau in Travis County, Texas, where it strictly inhabits spring-fed streams and subterranean c...
The Georgetown Salamander (Eurycea naufragia) is a federally threatened, permanently aquatic amphibian belonging to the family Plethodontidae. It is known only from a small number of limestone springs located in Williamson County, Texas, near the city of Georgetown. Like other lungless salamanders,...
The Northern Red-legged Frog (Rana aurora) is a medium-sized amphibian native to the Pacific Northwest region of North America. Its range extends from southwestern British Columbia in Canada down through Washington, Oregon, and into northern California. This species is typically found in humid fores...
The Salado salamander (Eurycea chisholmensis) is a small, aquatic, neotenic salamander belonging to the family Plethodontidae. It possesses a highly restricted geographic range, being entirely endemic to the spring outflows and subterranean waters of the Salado Creek system in Bell County, Texas. Du...
A federally endangered fairy shrimp (Streptocephalus woottoni) found only in vernal pools of San Diego and Riverside counties, California, and listed under the Endangered Species Act.
The Yosemite toad (Anaxyrus canorus) is a species of true toad endemic to the high-elevation wetlands of California's Sierra Nevada mountains, typically found above 6,000 feet. The species exhibits sexual dimorphism, with females displaying black and cream spots, while males generally have a uniform...
The Foothill Yellow-legged Frog (Rana boylii) is a medium-sized frog native to the streams and rivers of California and Oregon. It relies heavily on intact riparian ecosystems, requiring shallow, flowing water and cobblestone streambeds to attach its egg masses securely. The species has experienced...
The coral reef at Toliara (Tuléar) in southwestern Madagascar is one of the most studied in the western Indian Ocean and faces significant pressure from overfishing.
The Spotted Owl (Strix occidentalis) is a medium-sized owl native to mature forests of western North America. It is divided into three recognized subspecies associated with the Pacific Northwest, the Sierra Nevada, and the canyonlands of the Southwest. Its reliance on structurally complex old-growth...
Branchinecta lynchi, the vernal pool fairy shrimp, is a small freshwater crustacean in the order Anostraca endemic to California and southern Oregon. The species inhabits seasonal vernal pools—temporary wetlands that fill with rainwater in winter and dry completely by summer—and its life cycle is ad...
Jefferson Salamander (Ambystoma jeffersonianum), named for Jefferson College in Pennsylvania, is a mole salamander that serves as a parent species in several unisexual all-female Ambystoma hybrid lineages.
The striped newt, Notophthalmus perstriatus, is a small salamander native to the southeastern United States and restricted principally to parts of Florida and Georgia. It inhabits upland longleaf-pine and sandhill landscapes and depends on temporary, fish-free wetlands for breeding. Adults are marke...
A fairy shrimp with exceptionally long antennae used in sensing its temporary pool environment, belonging to the diverse branchiopod order Anostraca.
The American Black Duck is a large dabbling duck native to eastern North America, heavily reliant on coastal wetlands and often hybridizing with the Mallard.
