Petit opossum-souris de Bolivie vs Dauphin de Commerson

Gracilinanus aceramarcae compared with Cephalorhynchus commersonii

Taxonomic Classification

Rank	Petit opossum-souris de Bolivie	Dauphin de Commerson
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Didelphimorphia (Didelphimorphia)	Cetacea (Whales & Dolphins)
Family	Didelphidae	Delphinidae (Oceanic Dolphins)
Genus	Gracilinanus	Cephalorhynchus
Species	Gracilinanus aceramarcae	Cephalorhynchus commersonii

Evolutionary Relationship

Petit opossum-souris de Bolivie and Dauphin de Commerson share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

Petit opossum-souris de Bolivie

LC — Least Concern

Dauphin de Commerson

LC — Least Concern

Physical Characteristics

Attribute	Petit opossum-souris de Bolivie	Dauphin de Commerson
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Petit opossum-souris de Bolivie

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Dauphin de Commerson

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Petit opossum-souris de Bolivie

The Aceramarca Gracile Opossum (Gracilinanus aceramarcae) is a species in the genus Gracilinanus. It is currently classified as Least Concern on the IUCN Red List. It typically inhabits diverse terrestrial and aquatic ecosystems.

Dauphin de Commerson

<em>Cephalorhynchus commersonii</em>, commonly known as Commerson's Dolphin, is a small cetacean in the family Delphinidae. This species is classified as Least Concern on the IUCN Red List and is notable for its striking black-and-white coloration, which makes it one of the most visually distinctive dolphin species. Commerson's Dolphins typically inhabit coastal and nearshore marine environments of the Southern Hemisphere, particularly around the Falkland Islands, the southern tip of South America, and a geographically isolated population near the Kerguelen Islands in the Indian Ocean. These dolphins are highly social animals, often observed in small groups engaging in acrobatic behaviors near the surface. They typically feed on fish, squid, and crustaceans, often hunting cooperatively in shallow waters and kelp beds. Their average lifespan is approximately 18 years, and they are known for their fast, energetic swimming. Commerson's Dolphins are sometimes caught as bycatch in fishing nets, posing a localized conservation concern despite their overall Least Concern status.