Black Howler Monkey vs Common Ostrich

Alouatta pigra compared with Struthio camelus

Key Differences

• Black Howler Monkey is Endangered while Common Ostrich is Least Concern.

Taxonomic Classification

Rank	Black Howler Monkey	Common Ostrich
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Struthioniformes (Struthioniformes)
Family	Atelidae	Struthionidae
Genus	Alouatta	Struthio
Species	Alouatta pigra	Struthio camelus

Evolutionary Relationship

Black Howler Monkey and Common Ostrich share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Howler Monkey

EN — Endangered

Common Ostrich

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Black Howler Monkey	Common Ostrich
Diet	—	Omnivore
Average Lifespan	—	45 years
Average Length	—	2.1 m
Average Weight	—	100.0 kg

Habitat & Geographic Range

Black Howler Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Ostrich

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (4 countries), Europe (5 countries), and South America (Colombia, Ecuador, Peru).

Black Howler Monkey

The Black Howler Monkey (Alouatta pigra) is a species in the genus Alouatta. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Common Ostrich

The world's largest and heaviest living bird, common ostriches stand up to 2.8 meters tall and weigh 156 kg, inhabiting savannas and semi-arid plains of Africa. Flightless, they compensate with powerful long legs capable of delivering lethal kicks and sustaining running speeds of 70 km/h — the fastest of any bird. Their large eyes are the biggest of any land vertebrate. Ostriches lay the largest eggs of any living bird.