Clown Frog vs Isabel's Saki

Atelopus varius compared with Pithecia isabela

Key Differences

• Clown Frog is Critically Endangered while Isabel's Saki is Data Deficient.

Taxonomic Classification

Rank	Clown Frog	Isabel's Saki
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Primates (Primates)
Family	Bufonidae	Pitheciidae
Genus	Atelopus	Pithecia
Species	Atelopus varius	Pithecia isabela

Evolutionary Relationship

Clown Frog and Isabel's Saki share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Clown Frog

CR — Critically Endangered

Isabel's Saki

DD — Data Deficient

Physical Characteristics

Attribute	Clown Frog	Isabel's Saki
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clown Frog

Habitat

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

Isabel's Saki

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.