Bay Porpoise vs small tortoiseshell

Phocoena phocoena compared with Aglais urticae

Key Differences

• Bay Porpoise is Vulnerable while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Bay Porpoise	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Lepidoptera (Butterflies & Moths)
Family	Phocoenidae	Nymphalidae (Brush-footed Butterflies)
Genus	Phocoena	Aglais
Species	Phocoena phocoena	Aglais urticae

Evolutionary Relationship

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

Conservation Status

Bay Porpoise

VU — Vulnerable

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Bay Porpoise	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bay Porpoise

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). 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.

Bay Porpoise

The Bay Porpoise (Phocoena phocoena) is a species in the genus Phocoena. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇦 Ukraine