Blackboard Tree vs Leatherback Sea Turtle

Alstonia scholaris compared with Dermochelys coriacea

Key Differences

• Blackboard Tree is Least Concern while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	Blackboard Tree	Leatherback Sea Turtle
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Magnoliopsida (モクレン綱)	Reptilia (爬虫類)
Order	Gentianales (リンドウ目)	Testudines (カメ)
Family	Apocynaceae	Cheloniidae (Sea Turtles)
Genus	Alstonia	Chelonia (Green Sea Turtles)
Species	Alstonia scholaris	Dermochelys coriacea

Conservation Status

Blackboard Tree

LC — Least Concern

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Blackboard Tree	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

Leatherback 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 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Leatherback Sea Turtle

オサガメは現存する最大のカメであり、爬虫類の中で4番目に重い種です。他のカメとは異なり、硬い甲羅ではなく柔らかく革のような皮膚に覆われています。