Guiana Dolphin vs Mourning Cloak

Sotalia guianensis compared with Nymphalis antiopa

Key Differences

• Guiana Dolphin is Data Deficient while Mourning Cloak is Critically Endangered.

Taxonomic Classification

Rank	Guiana Dolphin	Mourning Cloak
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Lepidoptera (Butterflies & Moths)
Family	Delphinidae (Oceanic Dolphins)	Nymphalidae (Brush-footed Butterflies)
Genus	Sotalia	Nymphalis
Species	Sotalia guianensis	Nymphalis antiopa

Evolutionary Relationship

Guiana Dolphin and Mourning Cloak share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Guiana Dolphin

DD — Data Deficient

Mourning Cloak

CR — Critically Endangered

Physical Characteristics

Attribute	Guiana Dolphin	Mourning Cloak
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Guiana Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Mourning Cloak

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Mourning Cloak

Mourning Cloak (Nymphalis antiopa) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.