Black-Necked Grebe vs Brown Slender Toad

Podiceps nigricollis compared with Ansonia leptopus

Key Differences

• Black-Necked Grebe is Endangered while Brown Slender Toad is Least Concern.

Taxonomic Classification

Rank	Black-Necked Grebe	Brown Slender Toad
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Aves (chim)	Amphibia (động vật lưỡng cư)
Order	Podicipediformes (Podicipediformes)	Anura (bộ Không đuôi)
Family	Podicipedidae	Bufonidae
Genus	Podiceps	Ansonia
Species	Podiceps nigricollis	Ansonia leptopus

Evolutionary Relationship

Black-Necked Grebe and Brown Slender Toad share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Black-Necked Grebe

EN — Endangered

Brown Slender Toad

LC — Least Concern

Physical Characteristics

Attribute	Black-Necked Grebe	Brown Slender Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Necked Grebe

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Slender Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Black-Necked Grebe

Black-Necked Grebe (Podiceps nigricollis) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Brown Slender Toad

The Brown Slender Toad (Ansonia leptopus) is a species in the genus Ansonia. It is currently classified as Least Concern on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.