Common Hippopotamus, Hippopotamus, Large Hippo vs Common Scoter

Hippopotamus amphibius compared with Melanitta nigra

Key Differences

• Common Hippopotamus, Hippopotamus, Large Hippo is Vulnerable while Common Scoter is Least Concern.

Taxonomic Classification

Rank	Common Hippopotamus, Hippopotamus, Large Hippo	Common Scoter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Artiodactyla (Even-toed Ungulates)	Anseriformes (Anseriformes)
Family	Hippopotamidae (Hippos)	Anatidae
Genus	Hippopotamus (Hippos)	Melanitta
Species	Hippopotamus amphibius	Melanitta nigra

Evolutionary Relationship

Common Hippopotamus, Hippopotamus, Large Hippo and Common Scoter share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Hippopotamus, Hippopotamus, Large Hippo

VU — Vulnerable

Population: ~130.0K

Trend: Decreasing ↓

Common Scoter

LC — Least Concern

Physical Characteristics

Attribute	Common Hippopotamus, Hippopotamus, Large Hippo	Common Scoter
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.

Common Scoter

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Common Hippopotamus, Hippopotamus, Large Hippo

Africa's most dangerous large mammal, common hippos can reach 3,200 kg and inhabit rivers, lakes, and wetlands of sub-Saharan Africa. Semi-aquatic, spending up to 16 hours daily submerged to keep cool, they graze on land at night. Despite appearing docile, hippos are extremely aggressive and territorial, responsible for hundreds of human fatalities annually. Vulnerable, with populations threatened by habitat loss and illegal hunting for ivory tusks.

Common Scoter

<em>Melanitta nigra</em>, the common scoter, is a sea duck in the family Anatidae, order Anseriformes, breeding across subarctic and boreal regions of Europe and northeastern North America. This species winters primarily along coastal marine environments, with records from Belgium, Denmark, Norway, Sweden, and the United States reflecting both breeding and wintering distributions. The common scoter typically nests near freshwater lakes and bogs in boreal and tundra habitats, migrating to sheltered coastal bays and estuaries during winter where it dives for bivalves, crustaceans, and other benthic invertebrates. Males are predominantly black with a characteristic orange-yellow knob at the base of the bill, while females are brown with pale cheek patches. <em>Melanitta nigra</em> is listed as Least Concern by the IUCN, though populations have experienced declines in some regions due to changes in wintering habitat quality and food availability. Biological traits for this species remain poorly documented in the scientific literature, including comprehensive data on average lifespan, body length, weight, and full dietary composition across seasons.