False widow vs Green Sea Turtle

Steatoda bipunctata compared with Chelonia mydas

Key Differences

• False widow is Least Concern while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	False widow	Green Sea Turtle
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Arachnida (クモガタ類)	Reptilia (爬虫類)
Order	Araneae (クモ目)	Testudines (カメ)
Family	Theridiidae	Cheloniidae (Sea Turtles)
Genus	Steatoda	Chelonia (Green Sea Turtles)
Species	Steatoda bipunctata	Chelonia mydas

Evolutionary Relationship

False widow and Green Sea Turtle share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

False widow

LC — Least Concern

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	False widow	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

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).

Green Sea Turtle

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 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Green Sea Turtle

アオウミガメは最も大きなウミガメの一つです。甲羅ではなく軟骨と脂肪の緑色に由来して名付けられました。