False widow vs Irrawaddy dolphin

Steatoda bipunctata compared with Orcaella brevirostris

Key Differences

• False widow is Least Concern while Irrawaddy dolphin is Endangered.

Taxonomic Classification

Rank	False widow	Irrawaddy dolphin
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Arachnida (蛛形纲)	Mammalia (哺乳動物)
Order	Araneae (蜘蛛目)	Cetacea (Whales & Dolphins)
Family	Theridiidae	Delphinidae (Oceanic Dolphins)
Genus	Steatoda	Orcaella
Species	Steatoda bipunctata	Orcaella brevirostris

Evolutionary Relationship

False widow and Irrawaddy dolphin share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

False widow

LC — Least Concern

Irrawaddy dolphin

EN — Endangered

Physical Characteristics

Attribute	False widow	Irrawaddy dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

False widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.