Brown Spider Monkey vs Common Satingrass

Ateles hybridus compared with Muhlenbergia frondosa

Key Differences

• Brown Spider Monkey is Critically Endangered while Common Satingrass is Not Evaluated.

Taxonomic Classification

Rank	Brown Spider Monkey	Common Satingrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Liliopsida (Monocots)
Order	Primates (Primates)	Poales (Grasses)
Family	Atelidae	Poaceae (Grass Family)
Genus	Ateles	Muhlenbergia
Species	Ateles hybridus	Muhlenbergia frondosa

Conservation Status

Brown Spider Monkey

CR — Critically Endangered

Common Satingrass

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Spider Monkey	Common Satingrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Spider Monkey

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 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

Common Satingrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada, Italy, and United States.

Brown Spider Monkey

The Brown Spider Monkey (Ateles hybridus) is a species in the genus Ateles. It is currently classified as Critically Endangered on the IUCN Red List. 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 6 distinct biome types spanning the

Common Satingrass

<em>Muhlenbergia frondosa</em>, commonly known as wirestem muhly or common satingrass, is a native perennial grass in the family Poaceae, distributed across central and eastern North America, with records from Canada, the United States, and an introduced presence in Italy. The species typically inhabits moist to mesic woodlands, forest edges, floodplain forests, streambanks, disturbed sites, and thickets, preferring partial shade to full sun and moist, well-drained soils. It grows in loose, spreading clumps with wiry stems that can reach up to 100 centimeters, bearing narrow leaves and fine, diffuse panicles of small spikelets in late summer and autumn. The species is adapted to a range of soil conditions from fertile floodplain soils to disturbed ground and is tolerant of occasional flooding. It is currently listed as Not Evaluated on the IUCN Red List, reflecting limited formal global assessment. <em>Muhlenbergia frondosa</em> provides habitat structure and seed resources for small birds and invertebrates in woodland edge communities. The plant reproduces by seed and vegetatively through spreading rhizomes, often forming substantial colonies. Its fine-textured foliage and late-season seed plumes provide ornamental value. Biological traits such as average lifespan, body measurements, and dietary data remain poorly documented in standardized ecological databases.