Hase iruka vs Brook Floater

Delphinus delphis compared with Alasmidonta varicosa

Key Differences

• Hase iruka is Least Concern while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Hase iruka	Brook Floater
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Mammalia (哺乳類)	Bivalvia (二枚貝)
Order	Cetacea (Whales & Dolphins)	Unionida (イシガイ目)
Family	Delphinidae (Oceanic Dolphins)	Unionidae
Genus	Delphinus	Alasmidonta
Species	Delphinus delphis	Alasmidonta varicosa

Evolutionary Relationship

Hase iruka and Brook Floater share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Hase iruka

LC — Least Concern

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Hase iruka	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hase iruka

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Brook Floater

Habitat

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

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Hase iruka

マイルカ（Delphinus delphis）は大西洋・地中海・インド太平洋の温帯〜熱帯海域に広く分布するイルカで、黒・白・黄色のクロスパターンが特徴的な模様を持つ。IUCNレッドリストでは軽度懸念（LC）に分類されており、世界で最も個体数の多いイルカの一種と考えられている。高速遊泳能力を持ちボウライドを楽しむ行動でよく知られ、数百頭からなる大きな群れを形成することがある。

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.