Raya marrón oscuro vs Delfín tonina

Sympterygia acuta compared with Tursiops truncatus

Key Differences

• Raya marrón oscuro is Critically Endangered while Delfín tonina is Least Concern.

Taxonomic Classification

Rank	Raya marrón oscuro	Delfín tonina
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Mammalia (mamíferos)
Order	Rajiformes (Rajiformes)	Cetacea (Whales & Dolphins)
Family	Arhynchobatidae	Delphinidae (Oceanic Dolphins)
Genus	Sympterygia	Tursiops (Bottlenose Dolphins)
Species	Sympterygia acuta	Tursiops truncatus

Evolutionary Relationship

Raya marrón oscuro and Delfín tonina share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Raya marrón oscuro

CR — Critically Endangered

Delfín tonina

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Raya marrón oscuro	Delfín tonina
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Raya marrón oscuro

Delfín tonina

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Raya marrón oscuro

The Bignose fanskate (Sympterygia acuta) is a species in the genus Sympterygia. It is currently classified as Critically Endangered on the IUCN Red List.

Delfín tonina

La especie de delfín más estudiada y reconocida, los delfines mulares habitan océanos cálidos y templados de todo el mundo, desde las aguas costeras poco profundas hasta el mar abierto. Altamente inteligentes con grandes cerebros en relación con el tamaño corporal, demuestran autoreconocimiento, comunicación compleja y aprendizaje social. Viven en sociedades fluidas de fisión-fusión y cooperan para arrear peces. Una especie indicadora clave de la salud del ecosistema marino.