Dwarf Wedge Mussel vs Onca

Alasmidonta heterodon compared with Panthera onca

Key Differences

• Dwarf Wedge Mussel is Vulnerable while Onca is Near Threatened.

Taxonomic Classification

Rank	Dwarf Wedge Mussel	Onca
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Bivalvia (Bivalvia)	Mammalia (mamíferos)
Order	Unionida (Unionoida)	Carnivora (carnívoros)
Family	Unionidae	Felidae (Cats)
Genus	Alasmidonta	Panthera (Big Cats)
Species	Alasmidonta heterodon	Panthera onca

Evolutionary Relationship

Dwarf Wedge Mussel and Onca share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Dwarf Wedge Mussel

VU — Vulnerable

Onca

NT — Near Threatened

Population: ~64.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Dwarf Wedge Mussel	Onca
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	1.9 m
Average Weight	—	100.0 kg

Habitat & Geographic Range

Dwarf Wedge Mussel

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Onca

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 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Onca

O maior felino das Américas, atingindo até 100 kg com corpo robusto e musculoso e pelagem com padrão de rosetas característico. Encontrado do México até a América do Sul, com populações mais expressivas na Amazônia e no Pantanal. Nadadores poderosos e predadores de topo, os jaguares desempenham papel fundamental na regulação das populações de presas. Classificado como Quase Ameaçado, com sua área de ocorrência diminuindo devido ao desmatamento.