Common Hippopotamus, Hippopotamus, Large Hippo vs Hourglass Dolphin

Hippopotamus amphibius compared with Lagenorhynchus cruciger

Key Differences

Common Hippopotamus, Hippopotamus, Large Hippo is Vulnerable while Hourglass Dolphin is Least Concern.

Taxonomic Classification

Rank	Common Hippopotamus, Hippopotamus, Large Hippo	Hourglass Dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Artiodactyla (偶蹄目)	Cetacea (Whales & Dolphins)
Family	Hippopotamidae (Hippos)	Delphinidae (Oceanic Dolphins)
Genus	Hippopotamus (Hippos)	Lagenorhynchus
Species	Hippopotamus amphibius	Lagenorhynchus cruciger

Evolutionary Relationship

Common Hippopotamus, Hippopotamus, Large Hippo and Hourglass Dolphin share a common ancestor at the Class level: Mammalia. (哺乳類)

表示 Class: Mammalia

Conservation Status

Common Hippopotamus, Hippopotamus, Large Hippo

VU — Vulnerable

Population: ~130.0K

Trend: Decreasing ↓

Hourglass Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Common Hippopotamus, Hippopotamus, Large Hippo	Hourglass Dolphin
Diet	Herbivore	—
Average Lifespan	40 years	—
Average Length	3.5 m	—
Average Weight	1.5 t	—

Habitat & Geographic Range

Common Hippopotamus, Hippopotamus, Large Hippo

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia and Kenya. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Hippopotamus, Hippopotamus, Large Hippo

アフリカで最も危険な大型哺乳類であるカバ（Hippopotamus amphibius）は最大3,200kgに達し、サハラ以南アフリカの河川、湖、湿地に生息する。半水生で、体温を保つために1日最大16時間水中に沈んでいることがあり、夜間に陸上で草を食む。穏やかに見えるが非常に攻撃的で縄張り意識が強く、毎年数百人の死亡原因となっている。象牙の密猟と生息地の消失により個体数が脅かされており、危急種に指定されている。