Bull-head shark vs Onca

Heterodontus japonicus compared with Panthera onca

Key Differences

Bull-head shark is Least Concern while Onca is Near Threatened.

Taxonomic Classification

Rank	Bull-head shark	Onca
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Mammalia (mamíferos)
Order	Heterodontiformes (Heterodontiformes)	Carnivora (carnívoros)
Family	Heterodontidae	Felidae (Cats)
Genus	Heterodontus	Panthera (Big Cats)
Species	Heterodontus japonicus	Panthera onca

Evolutionary Relationship

Bull-head shark and Onca share a common ancestor at the Phylum level: Chordata. (cordados)

View Phylum: Chordata

Conservation Status

Bull-head shark

LC — Least Concern

Onca

NT — Near Threatened

Population: ~64.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bull-head shark	Onca
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	1.9 m
Average Weight	—	100.0 kg

Habitat & Geographic Range

Bull-head shark

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Bull-head shark

The Bull-head shark (Heterodontus japonicus) is a species in the genus Heterodontus. It is currently classified as Least Concern on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

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.