Celebes crested macaque vs

Macaca nigra compared with Colacium simplex

Key Differences

• Celebes crested macaque is Critically Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Celebes crested macaque
Kingdom	Animalia (동물)	Protozoa (원생동물)
Phylum	Chordata (척삭동물)	Euglenozoa (유글레나류)
Class	Mammalia (포유류)	Euglenoidea (유글레나강)
Order	Primates (영장목)	Euglenida (Euglenida)
Family	Cercopithecidae (Old World Monkeys)	Euglenaceae
Genus	Macaca	Colacium
Species	Macaca nigra	Colacium simplex

Conservation Status

Celebes crested macaque

CR — Critically Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Celebes crested macaque
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Celebes crested macaque

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 Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Celebes crested macaque

The Celebes Crested Macaque (Macaca nigra) is a species in the genus Macaca. It is currently classified as Critically Endangered on the IUCN Red List. Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Colacium simplex is a photosynthetic euglenoid protist in the family Euglenaceae, notable for its epibiotic lifestyle as a stalked organism colonizing the surfaces of freshwater crustaceans and other zooplankton. This microscopic species belongs to a genus that bridges free-swimming euglenoid behavior and sessile, colonial existence, attaching to hosts via mucilaginous stalks. Colacium simplex, as its name implies, exhibits a relatively uncomplicated morphology compared to other genus members, with simple colony structures that anchor to copepods, cladocerans, and occasionally other small invertebrates. The organism photosynthesizes when light is available, using chloroplasts derived from the green algal endosymbiont common to euglenoids, while potentially employing osmotrophic nutrition in darker conditions. Its presence on zooplankton hosts can affect host swimming behavior and, in heavy infestations, may impose a metabolic cost on the carrier. Colacium simplex inhabits lentic and slow-moving lotic freshwater systems globally, wherever appropriate zooplankton hosts occur. It plays a role in microbial community structure and organic matter dynamics in planktonic food webs. Taxonomic understanding of the genus continues to evolve with molecular phylogenetic studies.