Clown Frog vs Pacific white-sided dolphin

Atelopus varius compared with Lagenorhynchus obliquidens

Key Differences

• Clown Frog is Critically Endangered while Pacific white-sided dolphin is Least Concern.

Taxonomic Classification

Rank	Clown Frog	Pacific white-sided dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Amphibia (両生類)	Mammalia (哺乳類)
Order	Anura (カエル)	Cetacea (Whales & Dolphins)
Family	Bufonidae	Delphinidae (Oceanic Dolphins)
Genus	Atelopus	Lagenorhynchus
Species	Atelopus varius	Lagenorhynchus obliquidens

Evolutionary Relationship

Clown Frog and Pacific white-sided dolphin share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Clown Frog

CR — Critically Endangered

Pacific white-sided dolphin

LC — Least Concern

Physical Characteristics

Attribute	Clown Frog	Pacific white-sided dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clown Frog

Habitat

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

Pacific white-sided dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Clown Frog

The clown frog (Atelopus varius), also known as the harlequin frog or variable harlequin toad, is a small, vibrantly colored true toad in the family Bufonidae native to the premontane and montane rainforests of Costa Rica and Panama. Adults display bold black-and-yellow or black-and-orange aposematic patterns that warn predators of their skin toxins. Males typically measure 27–39 mm in snout-vent length and females slightly larger. The species inhabits fast-flowing streams in humid highland forests at elevations generally between 200 and 1,800 m, where breeding occurs in riparian zones. Atelopus varius was once common throughout its range but has suffered catastrophic population declines since the 1980s, primarily due to the chytrid fungal pathogen Batrachochytrium dendrobatidis (Bd), which has driven mass mortality events in amphibians globally. Additional threats include habitat loss from deforestation and agricultural expansion. The species is listed as Critically Endangered by the IUCN. Conservation programs involving captive breeding and disease-resistant population management are underway in Costa Rica and Panama in collaboration with international zoos.