Broadfin shark vs Long-tailed Sylph

Negaprion acutidens compared with Aglaiocercus kingii

Key Differences

• Broadfin shark is Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Broadfin shark	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Apodiformes (Apodiformes)
Family	Carcharhinidae	Trochilidae
Genus	Negaprion	Aglaiocercus
Species	Negaprion acutidens	Aglaiocercus kingii

Evolutionary Relationship

Broadfin shark and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Broadfin shark

EN — Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Broadfin shark	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broadfin shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

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

Long-tailed Sylph

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Broadfin shark

The Broadfin shark (Negaprion acutidens) is a species in the genus Negaprion. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.