American Bald Eagle vs Coccolithophorid

Haliaeetus leucocephalus compared with Hymenomonas roseola

Taxonomic Classification

Rank	American Bald Eagle	Coccolithophorid
Kingdom	Animalia (สัตว์)	Chromista (โครมิสตา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Haptophyta (Haptophyta)
Class	Aves (นก)	Prymnesiophyceae (Prymnesiophyceae)
Order	Accipitriformes (อันดับเหยี่ยว)	Coccolithales (Coccolithales)
Family	Accipitridae (Hawks & Eagles)	Hymenomonadaceae
Genus	Haliaeetus (Sea Eagles)	Hymenomonas
Species	Haliaeetus leucocephalus	Hymenomonas roseola

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Coccolithophorid

NE — Not Evaluated

Physical Characteristics

Attribute	American Bald Eagle	Coccolithophorid
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

American Bald Eagle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

Coccolithophorid

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and United States.

American Bald Eagle

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.

Coccolithophorid

Hymenomonas roseola is a marine coccolithophore in the class Prymnesiophyceae, belonging to the order Coccolithales—a group of single-celled phytoplankton celebrated for covering their cell surfaces with ornate calcium carbonate scales known as coccoliths. This species is notable for producing distinctive coccoliths with a characteristic architecture visible under electron microscopy. Like all coccolithophores, Hymenomonas roseola plays a significant role in oceanic biogeochemical cycles: the formation of calcium carbonate coccoliths drives the biological carbon pump by fixing inorganic carbon into mineral form, which sinks upon cell death to accumulate in deep-sea sediments. The species inhabits the photic zone of temperate to subtropical marine waters in the North Atlantic, Mediterranean, and Pacific regions, where it has been documented from coastal and open-ocean samples. As a photosynthetic organism, it requires sunlight for carbon fixation and typically blooms in stratified surface waters with adequate nutrients. Coccolithophore blooms can be so dense as to be visible from space as turquoise patches in satellite imagery. Hymenomonas species have also been noted for their ability to calcify in culture, making them useful laboratory models for studying coccolith biomineralization mechanisms and the potential impacts of ocean acidification, which threatens to dissolve calcium carbonate structures as seawater pH decreases. Its conservation status has not been formally evaluated.