silky shark vs small tortoiseshell

Carcharhinus falciformis compared with Aglais urticae

Key Differences

• silky shark is Vulnerable while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	silky shark	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Carcharhiniformes (Ground Sharks)	Lepidoptera (Butterflies & Moths)
Family	Carcharhinidae	Nymphalidae (Brush-footed Butterflies)
Genus	Carcharhinus	Aglais
Species	Carcharhinus falciformis	Aglais urticae

Evolutionary Relationship

silky shark and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

silky shark

VU — Vulnerable

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	silky shark	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

silky shark

Habitat

Found across multiple habitat types including temperate coniferous forests, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Algeria, Taiwan, Tunisia, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.