巨頭鵲鴨 vs common sea hare

Bucephala albeola compared with Aplysia punctata

Key Differences

• 巨頭鵲鴨 is Not Evaluated while common sea hare is Least Concern.

Taxonomic Classification

Rank	巨頭鵲鴨	common sea hare
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Mollusca (软体动物门)
Class	Aves (鳥綱)	Gastropoda (腹足纲)
Order	Anseriformes (雁形目)	Aplysiida (海鹿目)
Family	Anatidae	Aplysiidae
Genus	Bucephala	Aplysia
Species	Bucephala albeola	Aplysia punctata

Evolutionary Relationship

巨頭鵲鴨 and common sea hare share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

巨頭鵲鴨

NE — Not Evaluated

common sea hare

LC — Least Concern

Physical Characteristics

Attribute	巨頭鵲鴨	common sea hare
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

巨頭鵲鴨

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (11 countries) and North America (United States).

common sea hare

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

巨頭鵲鴨

棉头鸭（Bucephala albeola）在IUCN红色名录中被列为未评估（NE）。尚未依照IUCN红色名录标准进行评估，保护状况有待确定。

common sea hare

<em>Aplysia punctata</em>, the common sea hare, is a large opisthobranch sea slug in the family Aplysiidae, order Aplysiida, found in the northeastern Atlantic Ocean and Mediterranean Sea, with confirmed records from Denmark, Norway, Portugal, and Sweden. This species typically inhabits shallow subtidal and intertidal zones with abundant macroalgae, feeding primarily on red and green algae — a diet that influences the color of the defensive purple ink it secretes when threatened. <em>Aplysia punctata</em> is a simultaneous hermaphrodite, capable of acting as both male and female during mating, and often forms mating chains involving multiple individuals. It can reach considerable size among European opisthobranch species, though body dimensions vary considerably with age and feeding conditions. The species is classified as Least Concern by the IUCN, reflecting stable populations across its coastal range. Biological traits for this species remain poorly documented in the scientific literature, including precise average data on lifespan, body length, weight, and detailed seasonal dietary patterns, though its general herbivorous feeding on macroalgae is well established.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden