Fahad Sayad (الفهد الصياد) vs

Acinonyx jubatus compared with Chrysosphaerella longispina

Key Differences

Fahad Sayad (الفهد الصياد) is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Fahad Sayad (الفهد الصياد)
Kingdom	Animalia (حيوانات)	Chromista (أسناخ صبغية)
Phylum	Chordata (حبليات)	Ochrophyta (طحالب داكنة)
Class	Mammalia (ثدييات)	Chrysophyceae (طحالب ذهبية)
Order	Carnivora (لواحم)	Ochromonadales (Ochromonadales)
Family	Felidae (Cats)	Paraphysomonadaceae
Genus	Acinonyx (Cheetahs)	Chrysosphaerella
Species	Acinonyx jubatus	Chrysosphaerella longispina

Conservation Status

Fahad Sayad (الفهد الصياد)

VU — Vulnerable

Population: ~6.7K

Trend: Decreasing ↓

NE — Not Evaluated

Physical Characteristics

Attribute	Fahad Sayad (الفهد الصياد)
Diet	Carnivore	—
Average Lifespan	12 years	—
Average Length	1.5 m	—
Average Weight	50.0 kg	—

Habitat & Geographic Range

Fahad Sayad (الفهد الصياد)

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 9 distinct biome types spanning the Afrotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Botswana, Iran, Kenya, Namibia, and Tanzania. Currently classified as Vulnerable 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.

Fahad Sayad (الفهد الصياد)

The fastest land animal on Earth, reaching speeds of 112 km/h over short distances across African and Iranian grasslands. Slender build with a deep chest, long legs, and distinctive black tear-stripe markings. Unlike other big cats, cheetahs vocalize with chirps and purrs. Vulnerable, with only ~7,000 remaining due to habitat fragmentation and competition with larger predators.

Chrysosphaerella longispina is a colonial chrysophyte alga in the genus Chrysosphaerella, notable for the long silica spines (longispina: Latin, long spine) that project from each cell in the colony. The genus is characterized by spherical or discoid colonies of photosynthetic cells that each secrete siliceous scales and elongated spine-like appendages, making Chrysosphaerella colonies distinctively bristled and visible under light microscopy. The long spines of C. longispina likely serve as anti-predation structures that make the colonies more difficult for zooplankton to ingest. C. longispina is found in cold, oligotrophic freshwater lakes, particularly in Scandinavia, where comprehensive chrysophyte surveys have documented its presence. Chrysosphaerella colonies contribute to freshwater primary production and the cycling of biogenic silica, which upon cell dissolution is deposited in lake sediments as microscopically identifiable remains. These silica structures are widely used by paleolimnologists to reconstruct past changes in lake water chemistry, thermal stratification, and climate. The conservation status of C. longispina has not been assessed by the IUCN; the species is listed as Not Evaluated.