Green Sea Turtle vs Monarch

Chelonia mydas compared with Danaus plexippus

Key Differences

• Green Sea Turtle is Endangered while Monarch is Not Evaluated.
• Green Sea Turtle is 400000.0x heavier than Monarch.
• Green Sea Turtle lives longer (80 years vs 1 years).

Taxonomic Classification

Rank	Green Sea Turtle	Monarch
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Reptilia (Reptiles)	Insecta (Insects)
Order	Testudines (Turtles & Tortoises)	Lepidoptera (Butterflies & Moths)
Family	Cheloniidae (Sea Turtles)	Nymphalidae (Brush-footed Butterflies)
Genus	Chelonia (Green Sea Turtles)	Danaus (Milkweed Butterflies)
Species	Chelonia mydas	Danaus plexippus

Evolutionary Relationship

Green Sea Turtle and Monarch share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Monarch

NE — Not Evaluated

Trend: Decreasing ↓

Physical Characteristics

Attribute	Green Sea Turtle	Monarch
Diet	Herbivore	Herbivore
Average Lifespan	80 years	1 years
Average Length	1.2 m	5 cm
Average Weight	200.0 kg	0 g

Habitat & Geographic Range

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.

Monarch

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), North America (Canada, United States), and South America (Colombia).

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.

Monarch

One of the world's most remarkable migratory insects, monarch butterflies undertake multigenerational round-trip migrations of up to 4,800 km between breeding grounds in northern North America and overwintering sites in Mexican mountain forests. Brilliant orange and black wings warn predators of toxicity derived from milkweed plants consumed as caterpillars. Endangered, with overwintering populations having declined by over 80% since the 1990s due to milkweed habitat loss, pesticides, and climate change.